Compare to buying and selling stocks repeatedly for an hour. Except for transaction fees you're probably not going to move more than a couple percent.
What do you want documentation for? Buying a stock for three months is about a million times slower of a feedback loop than a casino game, and that's an unarguable fact. When I search for anything about addiction to investing, all I find is articles talking about addiction to speculating, which is not the same thing.
And of course the speed matters, because the core of my argument was that you can't do something like blow your paycheck on investments. Bad investment might lessen your savings over the long term, but they're not going to turn a working adult into someone that costs society money the way a terrible car crash or gambling addiction can.
Your argument would hold some weight if you could provide some source or documentation for your assertions (that investment has no feedback loop and is therefore not addictive, or that the speed at which you lose your money on an investment is something that matters for the sake of this conversation).