You're spot on that it's gambling. My specific gamble last time was that I had an information advantage that others did not regarding Bitcoin. I sold up when t

You're spot on that it's gambling. My specific gamble last time was that I had an information advantage that others did not regarding Bitcoin. I sold up when that no longer felt true, and when the money had become enough that I couldn't afford to lose. My specific gamble this time is that there is a bubble, but barriers to entry to owning Bitcoin are high enough that it still has momentum. I can afford to lose my current stake, and will stay in while I continue to feel that way, and while I remain under the UK capital gains threshold.