If one were to buy and hold solid avaerge coins (not a coin that kicks out and gets 10000% gain), but rather a nice steady gain like eth, Ltc etc (top 20) and starts with 10k, is it possible to reach a million without trading and buying/selling at highs and lows? If so, how long would you predict it would take? Or are most coins not going to last long term, so every 6 months would I have to rebalance with newer coins?
Nothing is certain. If we would know, we are probably so damn rich by now. But that's not the case. We are in the phase of uncertainty. There many hindrance that cryptocurrency faces right now. Number one is regulation - different states upholds different regulation. 10000% gains will not likely to happen in just a year or two. It depends on how the market adopts regulation in the near future.