Thanks for the link. I mean that predictions are outputs of a process that includes a representation, so part of what’s getting passed back and forth in the diagram are better and worse fit representations. The degrees of freedom point is that we choose very flexible representations, whittle them down with the actual data available, then get surprised that that representation yields other good predictions. But we should expect this if Nature shares any modular structure with our perception at all, which it would if there was both structural reasons (literally same substrate) and evolutionary pressure for representations with good computational properties i.e. simple isomorphisms and compressions.
Thanks for the link. I mean that predictions are outputs of a process that includes a representation, so part of what’s getting passed back and forth in the diagram are better and worse fit representations. The degrees of freedom point is that we choose very flexible representations, whittle them down with the actual data available, then get surprised that that representation yields other good predictions. But we should expect this if Nature shares any modular structure with our perception at all, which it would if there was both structural reasons (literally same substrate) and evolutionary pressure for representations with good computational properties i.e. simple isomorphisms and compressions.