[0xak]

That is ill-posed. Take any algorithm at all, e.g. a TSP solver. Make a "most probable next token predictor" that takes the given traveling salesman problem, runs the solver, and emits the first token of the solution, then reruns the solver and emits the next token, and so on.

By this thought experiment you can make any computational process into "predict the most probable next token" - at an extreme runtime cost. But if you do so, you arguably empty the concept "token predictor" of most of its meaning. So you would need to more accurately specify what you mean by a token predictor so that the answer isn't trivially true (for every kind of thought that's computation-like).