Billionaire's WARNING: I'm SELLING. The Crash Is Already Here!

Jun 25, 2026 Transcript ↗
Overview

Billionaire investor Jeremy Grantham warns the AI boom is the biggest investment bubble in history, forecasting a major collapse. He shares strategies to protect wealth, discusses the impact of wealth inequality, and highlights the alarming decline in human fertility due to environmental toxins.

At a Glance
13 Insights
1h 45m Duration
33 Topics
11 Concepts

Deep Dive Analysis

Introduction to Jeremy Grantham and Investment Bubbles

The AI Bubble and Impending Market Collapse

Jeremy Grantham's Investment Career and Philanthropy

Impact of a Market Crash on the Average Person

Recommended Investment Strategy for Economic Downturns

Understanding Bonds and Property as Investments

Why Avoid US Stocks and Investment Advisor Incentives

Advice for Entrepreneurs During a Bubble

The Nature and Risks of Artificial Intelligence

The Battle Among Major AI Corporations (MAG-7)

Job Disruption from AI and Robotics

Critique of SpaceX's Valuation and Mars Colonization

Valuable Skills for the Future

Societal Decline and Wealth Inequality

Historical Precedents for Extreme Inequality

Addressing Wealth Inequality through Taxation

Personal Wealth Accumulation Strategy in the AI Era

Investment Advice for Average Earners

View on Cryptocurrency as an Investment

Property as an Investment in a Declining Population

The Chronic Baby Bust and Declining Fertility Rates

Environmental Toxins Causing Fertility Decline

Impact of Endocrine Disruptors and Microplastics

Pesticides' Effect on Fertility

Reducing Toxic Chemical Exposure

Differences in US vs. European Product Safety

Personal Health Strategies in a Toxic World

The Importance of Supporting Family Formation

Bracing for Tougher Times and Useful Skills

The Dissolving Social Contract in the US

Maternal Mortality as a Measure of Civilization

Considering Moving Countries for Better Social Contracts

Jeremy Grantham's Next Goal: A 'Silent Spring' for Toxicity and Family

Investment Bubble

A market phenomenon where asset prices rise rapidly and unsustainably, driven by widespread optimism and overinvestment in a 'great idea,' eventually leading to a sharp collapse.

Small Cap (Stocks)

Investing in smaller companies, a concept introduced to the investment business in the 1970s.

Value Stock

A stock that appears cheap relative to its intrinsic value, often based on metrics like earnings or assets.

Bull Market

A period in which stock prices are rising, encouraging optimism and attracting buyers.

Bear Market

A period in which stock prices are falling, characterized by pessimism and caution.

Efficient Market Hypothesis

The idea that stock prices accurately reflect all available information, meaning it's impossible to consistently 'beat the market' because prices are always logical and fair. Jeremy Grantham argues against this, stating stock prices are largely psychological.

Gini Ratio

A measure of income or wealth inequality within a society, where a higher ratio indicates greater inequality.

Endocrine Disruptors

Chemicals that interfere with the body's endocrine (hormone) system, potentially causing adverse developmental, reproductive, neurological, and immune effects.

Microplastics

Tiny plastic particles (less than 5mm) that contaminate the environment and human bodies, leaching toxins and acting as endocrine disruptors.

Tragedy of the Commons

An economic problem where individuals, acting independently and rationally according to their own self-interest, deplete a shared limited resource, even when it is clear that it is not in anyone's long-term interest for this to happen.

Social Contract

An implicit agreement among members of a society to cooperate for social benefits, for example, by sacrificing some individual freedom for state protection.

?
What is an investment bubble?

An investment bubble occurs when a "great idea" attracts excessive money, leading to overinvestment and an unsustainable rise in stock prices, which eventually burst, causing significant market declines.

?
Why should I avoid US stocks right now?

US stocks are considered badly overpriced compared to historical averages and international markets, making them a risky investment with potentially negative returns over the next decade, similar to Japan's market after its 1989 bubble.

?
Why won't investment advisors warn me about a market crash?

Investment advisors have a business incentive to maintain assets under management, so they will not tell clients to exit the market, even if they privately believe a crash is coming, because it would lead to lost business.

?
What should entrepreneurs do during an AI bubble?

Entrepreneurs dependent on investment capital should raise as much money as possible now to build financial conservatism, as capital will become scarce when the bubble bursts.

?
What are the risks of advanced AI?

The primary risk is that a super-intelligent AI, if not carefully programmed for benevolence, could cause catastrophic unintended consequences, even from simple instructions, potentially harming humanity.

?
What skills will be most valuable in the future?

Practical skills like engineering, mechanical work (fixing, repairing), and general science will be highly valuable, especially if societal complexity unravels.

?
What is causing the decline in human fertility?

The decline is primarily caused by environmental toxins, including endocrine-disrupting chemicals from plastics, cosmetics, food packaging, and pesticides, which interfere with hormones and reproductive capacity.

?
How do microplastics affect human health?

Microplastics are physically embedded in human placentas, breast milk, and testicles, where they leach toxins (endocrine disruptors) that lower sperm count and motility and are linked to testicular cancer.

?
What is the difference in product safety between the US and Europe?

The US permits the use of significantly more agricultural pesticides, cosmetic chemicals, and food additives that are banned or heavily restricted in the EU, China, and other developed countries due to known toxicity and hormone disruption.

?
What is the 'social contract' and why is it important for a society?

The social contract is an implicit agreement where individuals behave in ways that help their neighbors and society, fostering community and providing a safety net; its dissolution can lead to loneliness, ineffective safety nets, and societal decline.

?
What is the significance of maternal mortality rates?

Maternal mortality rates are a crucial measure of a civilization's health and social contract, indicating how well a society cares for its most vulnerable members; the high rate in the US compared to other rich nations points to extreme inequality in its medical system.

1. Avoid US Stocks

Do not own US stocks, including the S&P 500, as they are badly overpriced and foreign stocks (emerging markets, Europe, Japan, Canada, Australia) are cheaper and have outperformed.

2. Sell US Tech Stocks

If you have a significant position in US technology stocks, consider selling it all due to extreme overvaluation and the impending AI bubble burst.

3. Diversify Investments Broadly

Always diversify your investment portfolio to include wholesome bonds, cash, and a small amount of precious metals like gold and silver, especially when an economic bubble collapse is anticipated.

4. Invest in Non-US Equities

Allocate around 60% of your investment money to a broad-based index of non-US equities, as these markets are cheaper and have shown better performance recently.

5. Hold Precious Metals

Allocate 5-10% of your investment portfolio to precious metals like silver and gold as a hedge against market volatility.

6. Founders: Secure Capital Now

If you are an entrepreneur or founder dependent on investment capital, raise as much money as possible now to build conservatism and brace for impending problems when capital becomes scarce after a market collapse.

7. Develop Practical Skills

For future career planning, focus on acquiring practical skills such as engineering, mechanical work (fixing, repairing), and science, as these will be valuable if societal complexity unravels.

8. Build Strong Community Ties

Make friends and ensure you are living in a tight-knit society where people are interested in each other’s well-being, as this provides a crucial safety net during tough times.

9. Detoxify Your Environment

Actively reduce exposure to endocrine-disrupting chemicals found in plastics, cosmetics, food packaging, and pesticides by using apps to scan products and choosing organic options.

10. Monitor Product Ingredients

Use apps like YUKA, EWG’s Healthy Living, Think Dirty, or ClearYah to scan barcodes or check ingredients of food, cleaning supplies, and cosmetics to identify and avoid toxic chemicals.

11. Address Fertility Proactively

Young couples should consider family planning interventions like freezing eggs, embryos, or sperm, as fertility rates are declining rapidly due to environmental toxins.

12. Brace for Tougher Times

Plan your life with the expectation that economic times will be tougher than anticipated, meaning jobs may become scarcer and living costs higher.

13. Seek Useful, Societally Beneficial Jobs

Pursue jobs that are useful and contribute to society, such as mechanical work, repairing, engineering, and scientific research.

The only people who think you can have compound growth on a finite planet are madmen and economists.

Jeremy Grantham

The greater the idea, the more obvious the idea, the more money goes in and the bigger the bubble and the bigger the bust.

Jeremy Grantham

You will not receive the advice from investment advisors to get your tail out of the market, ever. It is not good business for them to do that.

Jeremy Grantham

The stock price is what you think the other guy will pay. If the stock is going up, it tends to suck in buyers.

Jeremy Grantham

When was there ever a case where a higher intelligence was benevolent in a sustainable way to a lower intelligence? The one example is mothers to babies.

Jeremy Grantham

The unintended consequences of a simple, good-meaning instruction can sometimes cause catastrophe that you didn't expect.

Jeremy Grantham

We all need clean air, clean water, fertile soil, and 2.1 healthy, well-educated children. Without any of those, society fails.

Jeremy Grantham

A bubble is not hard to see. There is this kind of plane, and then there's a Himalayan peak, which eventually goes back.

Jeremy Grantham

Large enterprises almost never get the big turning points, because they can't take the career risk involved.

Jeremy Grantham

Investment Strategy for Market Collapse

Jeremy Grantham
  1. Be diversified across asset classes, including bonds, cash, and precious metals.
  2. Hold wholesome bonds and cash.
  3. Include a small amount (5-10%) of precious metals like gold and silver.
  4. Consider property, but be aware of its current high cost.
  5. Avoid US stocks; prefer foreign stocks, especially broad indices of non-US equities (e.g., world ex-US, emerging markets).
  6. Hold investments for the long term, avoiding frequent buying and selling.

Protecting Fetal Health from Toxins

Jeremy Grantham
  1. For pregnant women: Avoid all cosmetics for the entire nine months of pregnancy.
  2. For pregnant women: Invest in buying organic versions of 'dirty dozen' fruits and vegetables (e.g., berries, apples, pears, peaches, spinach) to avoid pesticide exposure.
165 billion
Investment Management Peak Dollars managed by Jeremy Grantham's firm, GMO, at its peak.
85 billion
Current Investment Management Dollars currently managed by GMO.
90-95%
Personal Wealth Donated Percentage of his personal wealth Jeremy Grantham has given to his environmental foundation.
87 years old
Jeremy Grantham's Age Jeremy Grantham's current age.
70%
Expected Stock Market Decline (High Flyers) Not unexpected decline for high-flying stocks in a bubble burst.
82%
NASDAQ Decline (2000 Tech Bubble) The decline of the NASDAQ index during the 2000 tech bubble crash.
65 times earnings
Japanese Market Peak Valuation (1989) Valuation of the Japanese stock market at its peak in 1989.
35 times earnings
US Market Peak Valuation (2000 Tech Bubble) Valuation of the US market during the 2000 tech bubble.
35-40 times earnings
US Market Current Valuation Current valuation of the US market, depending on calculation.
35 years
Japanese Market Recovery Time (1989 crash) Time it took for the Japanese market to recover to its 1989 peak levels.
3.4 times family income
Typical House Price to Income Ratio (UK 1994) Ratio of house price to family income in the UK in 1994.
Over 10 times
Current House Price to Income Ratio (UK) Current ratio of house price to family income in the UK, depending on location.
Minus 2% per year
US Equities 10-Year Forecast (2000) Forecasted annual return for US equities from 2000-2010 (actual was minus 3%).
31%
Wealth Controlled by Richest 1% (US) Percentage of the nation's entire wealth controlled by the richest 1% of Americans.
2.5%
Wealth Shared by Bottom 50% (US) Percentage of the nation's wealth shared by the bottom 50% of the US population.
Almost halved
Sperm Count Decline (since 1970) Decline in average male sperm count from 100 million units/ml in 1970 to 35 million units/ml today.
2.5% per year
Sperm Count Decline Rate (current) Current annual rate of decline in average male sperm count.
45 million units per milliliter
Sperm Count for Easy Conception Approximate sperm count needed for a couple to get pregnant without difficulty.
17%
Couples Needing Fertility Help (today) Percentage of young couples who need help getting pregnant today, according to the World Health Organization.
2045
Projected Zero Sperm Count (median male) Year by which the median male sperm count is projected to hit zero if current decline continues unchecked.
50-75%
Insect Biomass Decline Decline in the biomass (weight) of flying insects over the last 60-70 years.
1,500
EU Banned Cosmetic Chemicals Number of chemicals banned by the EU in cosmetics (out of 10,000 total).
550
Canada Banned Cosmetic Chemicals Number of chemicals banned by Canada in cosmetics.
12
US Banned Cosmetic Chemicals Number of chemicals banned by the US in cosmetics.
85
US Banned Agricultural Pesticides (vs. EU, China, Brazil) Number of agricultural pesticides permitted in the US but completely banned in the EU, China, and Brazil.
Over 300 million pounds per year
US Pesticide Spraying (banned in Europe) Amount of pesticides sprayed annually in the US that are deemed too dangerous for legal use in Europe.
At least 45%
US Tap Water Contamination (PFAs) Percentage of all US tap water found to be contaminated with PFAs (forever chemicals).
6 years
Life Expectancy Difference (US vs. Sweden, today) The current difference in life expectancy between the US and Sweden.
2.1 children per couple
Replacement Fertility Rate The number of children per couple needed for a rich society to maintain a steady population.
480 per 100,000
Maternal Mortality Rate (Nigeria) Number of mothers who die in childbirth per 100,000 live births in Nigeria.
44 per 100,000
Maternal Mortality Rate (US Black Population) Number of mothers who die in childbirth per 100,000 live births in the US Black population.
20-21 per 100,000
Maternal Mortality Rate (US Overall) Number of mothers who die in childbirth per 100,000 live births in the US overall population.
2.1 per 100,000
Maternal Mortality Rate (Sweden) Number of mothers who die in childbirth per 100,000 live births in Sweden.
0
Maternal Mortality Rate (Norway) Number of mothers who died in childbirth in Norway in the last year or two.