Great points, thanks!! Dunno if it could stop my impulse, but gotta try.. Maybe options are safer, I gotta look into it.

By the way, I think there is no way other stocks would do well if the bubble ever bursts, so I believe it's better to invest in the bubble if it is not bursting - I actually have some nuclear energy stocks for this purpose. Need to sell them at some point..

It is impossible to exactly time the market, so I should hold my impulse, but I think there would be chart signals that would show that it is crashing.