This thought has come to everyones mind of having time machine and going back to a particular time and correct those things which they regret at present.If we can go back in time who would not like to invesr huge amounts in btc and be rich today by selling when prices were ATH in 2017 above $18k and enjoy luxurious life ahead by encashing them.So why talk about what is impossible and or you could have buy few months back when prices were low to $5k as they will rise soon.Its all about knowledge and luck you have with you.
Dreaming for the impossible to happen. Better yet, make a movie out of it, anyway, time machine is possible in movies.

Anyway, that's what people are regretting, but I think we need to realistic here. You are right, if you bought btc when it was $5k which was only recently, you should have been enjoying your profits now. And also, if you will buy now, more than likely you will gain profits in the coming days, even before the halving. So act now and not regret again in the future. Just saying here for those who are still dreaming of that 2013 and 2017 scenarios. Don't be stuck in those timelines. Move and act forward.