Now that we have AVX-512, let's move computing to a 512-bit global memory space where SHA512 hashes are pointers.
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Want exclusive write access to part of memory? Write your (public_key,signed_value) pair to the hash of your public key.
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The cache coherency protocol rejects improperly signed writes. Like IPFS, but Just Memory.
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There is a market for exactly one of these 512-bit computers worldwide. (But we'll each have a part of it.)
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Replying to @blaktron
Global memory state is stored across a hierarchy of blockchains, analogous to a CPU's hierarchy of page tables.
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Replying to @TimSweeneyEpic
So everyone has a copy of the whole thing? Where's the advantage to that?
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Replying to @blaktron @TimSweeneyEpic
Or does everyone just keep a subset + master lookup table? And how do you keep track of who has what tables?
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Replying to @blaktron @TimSweeneyEpic
Do you have to wait for your whole table is verified by the rest of the chain for writes to be valid?
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You'd speculatively run ahead, and backtrack if operations failed due to contention, in a transactional style.
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