What an AI accelerator is made of — and where The Grid can see supply-chain pressure. Every leading-edge accelerator shares the same upstream chokepoints: one foundry, one lithography supplier, one packaging bottleneck, three memory makers. Vendor substitution at the GPU level does not relieve constraints upstream of the fork.
This map shows the dependency structure and marks honestly what we measure and what we cannot. The gaps are the finding — they show where the surprises come from.