Investments are rather better compared to gambling, Investments liked fixed deposits, treasury bills are sure investments that yields dividends no matter what happens, There is no way to lose money with those investments compared to gambling.
I agree on the Investment is better compared to gambling part, but I don't agree with you when you said that "
There is no way to lose money in investment." because not all of the Investment sites out there are legit, most of it turned out to be a scam and run off with all the money that all of their investors invested to them, I mean those HYIPs out there.
And if we are going to talk those Gambling Investments, I would say that it is not that safe also, it is like using your money in gambling in a way, the only difference is the percentage of losing your money here is lower than the percentage of losing your money in gambling.