Just when you thought you had cured your colleague of his belief in $$too good to be true$$ schemes, he comes in

all excited about Bitcoin. He saw someone on television saying that Bitcoin was going to go to $$100,000$ and then

he read an article on the Internet where someone else said it is going to $$1,000,000.$ He can$$t wait to get in$.$ This

time, he does not ask for your opinion. He tells you that he is going to get started immediately and that you need

to get started, too. He leaves your office enthusiastically. Please comment on what you know and believe about

Bitcoin and other cryptocurrencies as an investment.