Yours is the top comment on this thread and it's a bit surprising. When you say less than 5%, what are you talk about? Can you point to any sources that back that up?
However, as an investment, as of right now, there is only a span of a few months where if you bought Bitcoin you would not be in the green right now.
Did people find a useful reason to buy Bitcoin already? Something that creates value, instead of hopping to sell higher for the next sucker?
But it was just a matter of thinking a bit about it. Everybody knows what Bitcoin is useful for: cyber-extortion and evading capital restrictions. There are even good reasons for practicing the last one... With that in mind, BTC still behaves like a bubble, but proving it's actually one depends on a quite laborious process of comparing the volumes and estimating how they will evolve.