There is that proverb about the best time to plant a tree that I like very much. It is a Chinese proverb and it is that "The best time to plant a tree was 20 years ago, the second best time is now". Let me replace that with "The best time to invest in bitcoin was 15 years ago, the second best time is now. Common no regrets at all. Another of my all time favourite quote by James R. Sherman is that  You can't go back and make a new start, but you can start right now and make a brand new ending. I would say that, you can't go back and make a buy bitcoin when it was at $100, but you can start right now and accumulate it slow and steady and just maybe one day you will join the 1 bitcoiner club.