Original sentence: Bitcoin has also been used as an investment, although several regulatory agencies have issued investor alerts about bitcoin.Bitcoin has been criticized for its use in illegal transactions, its high electricity consumption, price volatility, thefts from exchanges, and the possibility that bitcoin is an economic bubble
Edited sentence: Bitcoin is widely viewed as an economic bubble that has burst.It has also been criticized for its use in illegal transactions, its high electricity consumption, price volatility, and thefts from exchanges.It has been used as an investment, although several regulatory agencies have issued investor alerts about bitcoin