The only problem that i see on mega-bubble is that we can have big movements up and down, on halving day and following days. That is good for traders, but i don't now if it will be good to sell (in case of big increasings) and buy if price is having a correction.
First of all I doubt we will see any big movements on halving day.
It will be a normal day like any other.We may see the impect of the halving with a delay of a few months.I guess somewhere around in Q4 of this year.
And you don't have to sell just because the price might skyrocket.If you truly believe in Bitcoin and it's longterm success than just hold, sit at the sideline, have some popcorn with you and enjoy the show.Simple is that!