Brave move but remember all altcoins are pegged to centralized exchanges and bitcoin which are also pegged to fiat.so if bitcoin loses 90% of its value so do all altcoins because they have no exit. Even thou buffett is no tech expert hes predited a very bad ending for cryptos for the simple fact they have gone up to fast.All that being said steem iota bitshares EOS still have huge potential and i think we are still early into this crypto bubble.