When is the bubble going to burst? I'm just asking because I've been told it's been coming for years, yet BitCoin is now many thousands of percent more valuable than it was when I was first told that it was another tulip bulb.

In fairness to you it is very difficult to distinguish an Internet-style network effect, where there is exponential growth, and a bubble. But it's not impossible. This is exponential growth due to a network effect because BitCoin represents real value and is not a bubble.

Wrong. The only thing worse than losing money in a bubble from a banks point of view is missing out on a rare explosive paradigm shift. It makes perfect strategic sense for banks to invest in Bitcoin.