Umm....wouldn't you want to diversify or hedge the bitcoin?  I'm not sure how wise it is to keep most of your wealth in crypto, even if you're young and have a high income.  It's one of the riskiest investments you can make.  I think it's even riskier than getting into the stock market right now.

I'm not a huge fan of metals, but honestly right now gold or silver might not be a bad way to store some value.  Metals have been beaten down severely since 2011, and I don't know if they're going to fall much further.

As to the OP, there certainly does seem to be a pattern of financial crises coming every decade or so, but that might give you a false sense of being able to see the future.  And you know what?  I'm not sure why more people aren't talking about how these ICOs might be in a bubble, that crypto itself might be ripe for a fall.  Not everything crashes all at once.  In 2008, it started with the real estate market and banks, and the entire stock market followed.  I think the next big event might be crypto followed by the stock market--or at least crypto by itself.  Bitcoin might come away unscathed, but I think shitcoins and new ICOs are going to take a big hit.