Feeling the need to “diversify” stems from trying to hedge one investment against another, or from speculating (ie, gambling) that rapid gains from one investment will allow you to accumulate funds to put into another investment more quickly. Long term bitcoin is the hedge against everything else, and short term gains are never guaranteed. Some people may get lucky, but many will not. With a long enough time horizon bitcoin is the obvious “bet,” and from a freedom standpoint there is simply no comparison. But not everyone is in it for the freedom.