Phil Rosen
August 3, 2026
Is the AI Boom Different From Past Investment Cycles?
TL;DR
Despite AI's unprecedented technology, investor behavior in the current boom shows remarkably similar patterns to past market frenzies like 2020's ARK innovation bubble and China's equity surge, suggesting history may repeat.
Key Takeaways
- 1Semiconductor and AI-focused funds are trading at multiples higher volumes than ARK did in 2020, which marked a significant topping point for that cycle
- 2Investor behavior during the AI boom mirrors past frenetic environments where people eventually get burned, even though AI technology itself is unprecedented
- 3Similar speculative cycles have repeated throughout history: the 2020 innovation bubble, the Chinese equities surge last decade, and now the AI enthusiasm all follow comparable patterns
- 4While AI as a technology is genuinely novel, the investment dynamics and market psychology driving the boom follow predictable historical cycles
Notable Quotes
“This time is different. Of course, famous last words for all investors.”
“Yes, AI, the whole AI thing is unprecedented, right? But the behavior of investors is very similar to past cycles where people get burned.”
“Semifunds trade as much as and if not multiples more than say ARC did back in 2020. That marked a pretty significant topping point for that cycle.”
Chapters
1. The 'This Time Is Different' Claim
Investors argue the AI boom is unique, but skeptics note this phrase is considered infamous in investment history as a precursor to market corrections.
2. Comparable Trading Volumes and Past Cycles
AI-focused semifunds are trading at multiples exceeding ARK's volumes from 2020, which marked a significant topping point; the pattern mirrors the Chinese equities surge from the previous decade.
3. Technology vs. Investor Behavior
While AI technology is genuinely unprecedented, the frenetic investor behavior and market psychology driving the boom are very similar to past cycles where investors ultimately lost money.
Key People & Entities
- ARK
- Investment fund that peaked in 2020 during the innovation stock bubble
Glossary
- Topping point
- A peak in market price or valuation where a reversal or significant correction typically begins
- Frenetic
- Fast-paced, frenzied, and chaotic market activity driven by emotional trading rather than fundamental analysis
- Semifunds
- Investment funds focused on semiconductor and technology sectors