I've been thinking a lot about this issue. I heard more than once that many are discussing this topic. Is it safe to invest everything in one, two cryptocurrencies? Or to distribute all the money in all the coins available for this amount?
I can say that would be totally un safe. Because if that crypto that you invest on are failing, then you'll be loosing everything. You need to spread your fund into several crypto, in order to make balance on your income and as a safety precaution.