<prompt> Human: First, I know and share rpfs opinion on cryptocurrency trading as being primarily a gamble and not real investing, etc.A number of years ago, I bought 3 Bitcoin at 6.66 each. Ive held them since then, and originally had a goal of doing so until they reached some far distant value.More recently, Ive been wondering instead whether I should instead sell for an approximately 330 × after capital gains tax increase of the original 20 I spent and put that money into index funds instead, where it could grow to around 62,000 by retirement, if Im calculating correctly.Essentially, the gamble would be whether Bitcoin will grow to around 20,000 or higher per coin in that time. If that seems highly unlikely, selling and putting the money into more traditional investment funds is seeming a more reasonable approach now. On the other hand, if I do hold and it crashes to 0, I would only be out my original 20.What do others think? I dont have any debts or urgent needs for cash, and if I were to sell the Bitcoin, the money would be going into another form of long term investment.  <response>: I would only be out my original 20Stop thinking that way. Its only the houses money. - thats how gamblers justify ever riskier bets. No, readjust your floor: Your portfolio is right now worth 8,000-ish. What you do with 8,000 is the basis for your decision. At this moment, is it more likely that your investments are better served on the movement of a single thing, or better served by transferring them to a diversified index fund. Note that selling BTC will realize taxable gains, not that its a bad thing - you do want gains eventually, and Uncle Sam only takes a piece. I mean, yes, the party line here is to discourage high-risk single item bets, but you made the choice and did well. Now what? 