Original sentence: FINRA, a United States self-regulatory organization, has warned that investing in Bitcoin carries significant risks.One way of investing in Bitcoin is to buy bitcoins and hold them as a long-term, high-risk investment.Risk hasn't deterred all investors.Some investors, like Peter Thiel's Founders Fund, which invested  million, don't purchase bitcoins instead funding Bitcoin infrastructure like bitcoin exchanges, companies that provide bitcoin payment systems to merchants, or bitcoin wallet services, etc.The Winklevoss twins made a  million personal investment and attempted to launch a bitcoin ETF
Edited sentence: FINRA, a United States self-regulatory organization, warns that investing in bitcoins carries significant risks.One way of investing in bitcoins is to buy and hold them as a long-term, high-risk investment.Other investors, like Peter Thiel's Founders Fund, which invested  million, don't purchase bitcoins themselves instead funding Bitcoin infrastructure like exchanges, companies that provide payment systems to merchants, and wallet services, etc.Risk hasn't deterred some such as the Winklevoss twins, who made a  million personal investment and attempted to launch a bitcoin ETF.The European Banking Authority warns that the risks of investment go beyond a potential fall in the value of bitcoins