This article is pretty clickbait-y - their 2 "recommendations" are to short bitcoin or buy puts in bitcoin. Doing either isn't usually recommended for novice investors when dealing with reputable S&P500 type stocks, let alone a cryptocurrency in the middle of a mania. Following either recommendation could be a great way to lose your shirt.
Just to be clear, buying put options, in contrast to shorting, doesn't expose you to the possibility of a loss with no bound. The worst that can happen is in fact that you pay for the put options and lose nothing more.
