People who have bought Bitcoin at cheap rates so they are lucky people, when they want to sell at this time then the benefits can be ascertained and when trying to wait then the opportunity to achieve a much greater profit can happen.
Some may indeed be lucky, but most of the people who bought below $4000 were just smart.
Noobs kept paying attention to morons such as Tone Vays and other bears thinking the price had to drop below $1000 for the bottom to be really in. I also remember Tone having said that Ethereum had to drop below $20 or something to finally see Bitcoin increase. What the fuck. How can someone be so stupid? People actually pay him for one-on-one sessions, lol. I would ask for a refund.
The only part where luck will play a role is where you end up securing profits. People cashed out at $5000, but that wasn't it. They cashed out at $6000, but that wasn't it either. I have secured a chunk or two of my profits too soon as well, so I'm going to wait for $10,000 to actually sell again.