With less than 1 in 800 adults having any exposure to bitcoin, I think there is a long way to go.

I know that after the recent price rises, some will say that it's too late to buy bitcoin. That's a bit like saying "it's too late to get email" or "it's too late to get on the internet" in 1995.

We are a very long way from mass acceptance and adoption and there is no end of top investment advisors saying "I'm skeptical about it".

Today in 2017, I'm seeing the same fund managers who refused to go near tech in the 1990s running growth funds which own yesterday's winners like Facebook, Microsoft, Amazon, Twitter and so on.

So it will be 20 years from now.