Mark Cuban compared the cryptocurrency boom to the dot-com bubble.<br />In a string of tweets he recommended buyers hedge their bets.<br />He warned them about the dangers of debt in a string of tweets this week.<br />"Watching the cryptos trade, it's EXACTLY like the internet stock bubble."<br />Cuban sold his startup to Yahoo in 1999.<br />He managed to protect his billion-dollar windfall when the market crashed a few months later.<br />"My advice? Learn how to hedge," he tweeted.
