The inability to predict times is because AIs are rarely trained on their own abilities. Humans are trained on our own abilities. We see our own performance, and we have a sense of time. this data is integrated during our training process and helps us form better estimates. Many AI agents only recently got 'time sense' (I.e., time input into them as part of inference). Few actually are trained on their own outputs to show that they were unable to complete a problem (for example). This introspective training has little to do with AI model architecture and everything to do with training. If you destroy certain structures in the human mind, humans become unable to create these long-term thoughts and patterns and get 'stuck'.