Hindsight and regret

My business partner called the other day and kept saying he was sorry she i was right and i wasn't sure what he was talking about. Turns out he was going thru our old old text messages and 15 years ago I kept trying to convince him we should drop $1000 on bitcoin and sit on it for until we're ready to retire. Bitcoin was like 52 cents reach at the end of Jan 2011 and he argued and fought with me and told me crypto was the stupidest thing ever and we would have been throwing money away and i finally quit talking to him about it and got busy taking care of mom after my father passed and forgot to buy just buy it myself. I ended up buying 2 coins later but not buying when I first planned on it puts a knot in my stomach when I think about it lol