Trading and Investing are both methods for you to gain money in this virtual world. Both investors and traders earn money through the help of the market. They are good ways to make a profit.
Investors gain money when they but cryptocurrency and holds it for a long time, until bitcoin inflation happens, they will but cryptocurrency when the market is already down then if the market goes high that is the time that they will gain money by withdrawing it. While traders use the inflation and deflation of bitcoin to earn money, it involves buying and selling of currency in the virtual world.
So if you want to earn more money, you can do both things, the more, the merrier, if you are a beginner, then don't invest and trade significant amount of money because you may fail from it, you should do research first before doing that because it is not a simple thing, you should have an excellent knowledge and skill to be successful in both methods.
Yes, i also think so that both trading and investing need more knowledge to be successful. I personally saw many investors that invested without knowing vast and fall in deep problem and same as traders. Market is not much volatile to everybody must have to be careful so that they can not feel upset in future.
Of course, knowledge is needed in everyway to earn money, thus it is depending on the way you are earning. Investing is more easy more likely a passive income depending on the qualification of an investment. Trading has more work and it needs more knowledge to win trade wars.