Should have good knowledge for both investing and trading. But trading requires more intelligence and knowledge than investing. Investing should be done for a long time, if you invest for a long time, you can expect more profit. Chances of loss on investment are less. But should not invest in altcoins, it is better to invest in bitcoins. Trading is done for a limited period of time. Traders buy when the market is down and sell when there is some profit. Investing is also risky but trading is slightly more risky. I have invested in Bitcoin. I prefer investing to trading.