Previously, when I knew about BTC, I introduced to my friends that this is a technology currency and tends to develop in the future. but some news made my friends think negatively that this is just a scam like a ponzi scheme until BTC rallies to the top of $64k that they feel sorry. Before when BTC had $2k, they didn't invest in it and now they see the real value of BTC. They recently asked me how to invest in BTC when the price dropped to 1/2 and I said it was time to buy for a long term investment. and in the end they invested about 30k dollars to buy reserve BTC.