I have 500,000$ to invest

[escapefrom3dom]

Buy ETH.
Also go and look top crytpocurrency, take 10-15 from top and buy. In 2 years you will have 50 millions dollars.
In my opinion bitcoin dont have so much potential like small coins, they can do again 1000% and more. Much more faster than bitcoin

I wouldn't be so sure about further growth. the big recessions are no less probable.

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[aretebit]

I would put 95% only with well stablished trustable coins with great devs and big wordlwide support (btc and eth), because it's a too big sum to gamble. And the remaining 25k I would gamble in emergent coins hoping doing a killer (right now probably Neo because of his current bloodbath).

[Topkras]

I can help you to make a big mining farm in Russia if you want

[luigii]

I would invest 50% in BTC, 25% in ETH and last 25% split into 10-20 different altcoins. I believe BTC will increase in the price, at least ($10k) so you will get your investment back, and with altcoins portfolio, you will maybe earn some real cash.

[nathannation]

invest in genesis mining they keep you up to date and worth your time checking it out

[Michael_Gims]

don't invest everything. Keep a fraction for further opportunities

[ankurguta87]

buy different coins including btc and eth

[Michael_Gims]

diversification is important : you may buy some bitcoins and some ethereums, which are well established, and then try to diversify with more risky altcoins.

[cadilac9999]

100% for OPT

[Arkham Knight]

Divide your investment into different altcoins and don't forget to invest at least half of it into bitcoins.

[beebee187]

If you have that kind of money to invest, I would say start mining Ethereum. If you don't want to go the mining route, this is a great coin to purchase as well. Lots of future growth.