In investment, all you need is also luck and patience, but more likely, more patience than luck. I gambling you also need patience and luck, but more luck than patience.
Investment are really as dangerous as gambling, it also has risks which are need to look to before investing. Well, not all investments are successful.
In investment, yes you need luck and patience but that's the main thing in gambling. What you need in investment should be patience, luck and skill in order to get good profit because if you don't have those then you are rushing just like in gambling. Investment are risky but I don't think they are dangerous such as gambling.
Lol investment needs wise decision and patience, no need luck in investment as long as the company you invested is legit and follow the government law and have insurance of those people who invested in it when it goes bankrupt. You also need to research. the difference between investment and gambling is the risk mitigator. Luck never mitigate risk, it bypass everything and just happen without a cause which is scientifically impossible. So luck never exist.
A little bit of luck is still needed if you are going to invest. And if you think luck never exist then it is just happening suddenly, we all know that there are people that are lucky on their investment with their first try, since we know that investments aren't that successful once you started. So I guess, luck should be considered.