1; Trading is risky that it can empty your savings overnight but when lucky with good allocated strategies, you can be get rich overnight or probably in Short term. This means you are at the pool of gambling with less chances if at all you will make it a success.
That is the fact, for those that will listen, and that is the reason why newbies are warned not to involve themselves in trading when they have not gained the proper knowledge about it. But the truth is that despite how risky trading is, there are some sets of people who are making profits from it time to time. I would say those are experienced traders. Yes, trading can make a person rich overnight, but that is when you carry high risk. However, for those trading with caution and using reasonable capital, making small profits, it will be hard for them to get rich in the short term. The reason most new traders always lose money is because of the mindset that they want to make it quickly, and that is what makes them always carry high risk in trading.
2; Investment has zero risk but demands your patient to get you rich or successful probably in a long term.
Even Bitcoin investment, we can't say, is zero risk, as we can't fully predict what will actually happen in the future. Despite believing that it will be positive based on its past, it’s safer to say that Bitcoin investment carries less risk than trading. And to get one point: again, it’s only Bitcoin. If someone wants to invest in shitcoins, I would say it carries the same risk because, as you invest in a shitcoin, it might not even last long before you lose everything. So, whenever you want to compare trading with investment, try to include Bitcoin, because I have not seen any alternative investment with less risk compared to Bitcoin investment.