Anyway I was curious about the current MFTL+ speed values and came across this
The feat is valid (he actually just does do a search-problem on the required data set of the entire universe), but it’s somewhat exaggerated in its current method; taking the bit-quantity of this universe and then using a volume multiplier derived from how much bigger DC’s universe is doesn’t work since bit-density scales based on surface area, not volume, from the Bekenstein bound.
And anyway, properly speaking, he isn’t doing a brute-search on the Zeta Beam’s data set, he’s simulating the necessary conditions for the girl to be sitting on a park bench next to him so she can tell him the specific string which would solve the search-problem (which is what happens in the issue), which is deriving the scenario’s descript
Kolmogorov complexity, which in full is uncomputable (as in, it’s literally not Turing-complete, even if you had an infinitely long tape it wouldn’t halt in forever to give you the proper answer), and even approximating it involves a search over the possible state-space of worlds which would generate that string which is exponentially larger (2^10^universe-bits) and would be far above 10^168 operations done in two minutes. In any case the current methodology is wrong anyway, since his brain isn’t literally simulating the universe as it exists, deriving the string from it, and then using that; he’s cycling between simulated-worlds in his head in distributing over the data set to get that exact bench-scenario in which she gives the string. Which is, either, 2^10^122 operations (assuming he’s averaging over the entire space, and just using the regular universe’s bit-density, not DC’s) approximating the K-complexity, or properly requires hypercomputation (putting this as a speed value here is really tricky, at minimum he’s capable of solving problems which classically aren’t even possible in infinite time with infinite resources).
@Emirp sumitpo
(It’s funny that this is actually consistent for the character; the Book of Infinite pages feat represents a second example of this, since it’s the ‘one story’ which contains all other possible stories (of which there are infinity) and Superman just fits it in his head).
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