Playing in Cuba

Despite the hallucinations, the question is serious –
I recently read an interesting book called “The Cube Man,” about a man who decided to hand all his decisions over to a cube (he writes down six options – including some truly horrifying and outrageous ones – and acts according to the cube’s verdict).
It turns out that there are people who use this as a psychological aid to treat procrastination (for example, writing down the things you need to do, and doing one of them immediately according to the decision of the die). Is this allowed? Or is it a kind of “guessing” [although there is no guessing here because the person does not assume that the random event is a sign that one time is better than another, but there is some kind of “fate” here]?