So that was written 4 years before the dot-com bubble, so the crypto bubble will pop in another... 2 years? Or will it be sooner since we live in the age of information?
I can state with certainty there will be a correction at some point in the future. What I can't tell you is when. Timing is everything in the market even more important than direction.
If some are delisted, the fund loses the money allocated to them, but not its whole portfolio. Then new companies are added to the index, and the fund's remaining assets get re-allocated to match the rules of the fund's underlying index.
But they were right. If they kept at it and ignored the people telling them that the internet was a scam, there is a good chance that they’re very wealthy now.
The collapse point of these sorts of delusional bubbles are notoriously difficult to predict.