I don't understand how computational irreducibility matters for the perception of time. Surely, even a computationally reducible universe could be so insanely e

I don't understand how computational irreducibility matters for the perception of time. Surely, even a computationally reducible universe could be so insanely expensive to predict that it wouldn't matter? I also don't understand why our inability to predict the future is related to our perception of time. Overall, my impression is that this is an essay in philosophy (i.e, devoid of any content) rather than science.