> I think over-thinking is only solved by thinking more, not less.
Despite "thinking" tokens being determined by the preceding tokens, they still are taken from some probability distribution, just a complex one. This means that at each token selection step there is a probability P_e of an error, of selecting a wrong token.
These errors compound exponentially: the probability of not selecting wrong token for N steps is 1-(1-P_e)^N.
The shorter "thinking" is, the less is the probability of it going astray.