Based on my investigation, they are using CNC lathe with milling functionality.
The first video shows the actual manufacturing process (partial).
The second video will show the simulated full process.
(1/2)
It's literally impossible, they're being sold for 0.70$ each. If they were 70% manufacturing fee, and you wanted 10$/hr, on a 100k machine(minimum), you still wouldnt get there.
Even with full-batch gradients, DL optimizers defy classical optimization theory, as they operate at the *edge of stability.*
With @alex_damian_, we introduce "central flows": a theoretical tool to analyze these dynamics that makes accurate quantitative predictions on real NNs.