This top tech investor says ‘the big crash’ in cryptocurrencies in inevitable and cautions those going ‘all-in’

Cryptocurrencies like bitcoin and ether have unleashed an investor frenzy – and a chorus of warnings that a speculative bubble is about to burst.

The latest warning comes from Fred Wilson, a venture capitalist and co-founder of Union Square Ventures.

His advice: diversify your bitcoin assets before it’s too late.