Earlier quoted context omitted.
Crypto currency are the new tulip bulbs[1]. Only some are going to make money. Current buyers are relying on greater fools to take these off their hands. A crash is eminent so hold tight and wait for it. You will have plenty of opportunity. History will repeat itself as new fools arrive on the scene[2]. [1] https://en.wikipedia.org/wiki/Tulip_mania [2] https://en.wikipedia.org/wiki/List_of_stock_market_crashes_a...
I'm actually worried that one of the main things in favour of cryptocurrencies is that they can act as an effective currency for illegal activities, i.e. they'll stay profitable for as long as regulations struggle to keep up with them.
All that is ever discussed about cryptocurrencies at HN is marginal in comparison.