I was at a dinner party recently and Bitcoin came up in the context of markets and the economy. Someone shared their theory that cryptocurrency markets were part of the overarching tech bubble that's been developing since the last financial crisis, as reflected by the Nasdaq.
That's an interesting theory, not one I'd considered, though I'm not sure if it's true. I'm also not sure what kind of tech bubble there is, because I vividly recall the internet stock bubble that popped in 2000 and this bull market that we've been in for stocks for the past 11 years doesn't seem to be centered around tech companies in particular.
I remember thinking that we might have been in for version 2.0 when social media stocks started heating up, but I don't think those have been driving the market for years either.
Besides, as NeuroticFish has pointed out bitcoin hasn't been correlated strongly with the stock market for any significant length of time anyway. It's had booms and busts several times since 2009 whereas the stock market hadn't had even so much as a big correction until recently--at least none that I can recall.