I think you are meshing gambling and trading together? They can be both done when it comes to crypto imo, you can gamble your money into trying out a cryptocurrency you found or something but even the smallest decision like investing in a random top 10 coin already takes it outside of the realm of gambling and puts it into the realm of trading. Why? Because you started thinking. You started making decisions about a certain asset you wanted to invest in. That doesn't happen in gambling. No matter how much you start thinking about what game to play or what timing to roll the dice, the odds are and will always be the same.

If you were to pick something than trading to describe it but similar to gambling, then I'd call it a calculated gamble. It's a gamble, yes, but the calculated part makes the entire difference.