Well, you're both right and wrong. He's right You CAN, but your linked article is also 100% correct, GBTC / trusts are absolutely NOT etf's. There are however

Well, you're both right and wrong. He's right You CAN, but your linked article is also 100% correct, GBTC / trusts are absolutely NOT etf's. There are however etfs for crypto in other districts (I hold for example ethx.b, a canadian ETF that tracks ETH within my RRSP).