Yes, your description of my hypothetical is correct. I think it’s plausible that approximating things that happened in the past is computationally easier than breaking some encryption, especially if the information about the past is valuable even if it’s noisy. I strongly doubt my hypothetical will materialize, but I think it is an interesting problem regardless.
My concern with approaches like the one you suggest is that they’re restricted to small parts of the universe, so with enough data it might be possible to fill in the gaps.
Yes, your description of my hypothetical is correct. I think it’s plausible that approximating things that happened in the past is computationally easier than breaking some encryption, especially if the information about the past is valuable even if it’s noisy. I strongly doubt my hypothetical will materialize, but I think it is an interesting problem regardless.
My concern with approaches like the one you suggest is that they’re restricted to small parts of the universe, so with enough data it might be possible to fill in the gaps.