Iam totally regret when sold all my BTC when the price about $700 in 2016. In that times, I dont learn about the fundamental of BTC and future of cryptocurrencies, so I dont have any idea how the price in the long term. I dont want that happen again in my life, so I did buy BTC whenever the price down and hold it for ayears. In the long term, I want to make huge profit for my children. Investing in BTC for long term is life changing, because I believe BTC is digital of GOLD, and can be better than GOLD and BTC have potential to be bigger than GOLD itself in the future.