[SeanAnderson]

Are your tulips worth less if you bought them in 1636 or were they fairly priced and we're just still waiting on the market to come back to rationality?

It's easy to say that the homes were undervalued in that situation with hindsight. If disaster had actually struck then those prices seem fair. Clearly some people sold their houses just before Pompeii and made out like bandits.

Yes, you can apply a rationale mindset to things and use statistics-based inferences to try and calculate what the "real" value of something is rather than what the current, "market-based" value is and, more often than not, that's likely to serve you better, but black swan events still occur plentifully over a human's lifespan and those events are incredibly difficult to factor in when you need to optimize your wealth for practical usability over a couple of decades.

[andsoitis]

> Are your tulips worth less if you bought them in 1636 or were they fairly priced and we're just still waiting on the market to come back to rationality?

When you’re broadly invested in the market (diversified portfolio), you’re basically saying to yourself that you are optimistic that the future will be better than today. There will be more prosperity, more peace, more human flourishing. If you believe those things, then it is rational to be invested.

If, on the other hand, you believe the future is doomed, then I supposed it could make sense to withdraw all your money in a defensive move and, I dunno, do something else with it.

I know which path I choose.