The matrix C as an 8×8 grid of patches (standing in for 32×32; each band of rows needs 8 deposits here, standing in for 32). Press play — patches land in scattered order. Click any landed patch to zoom into what a deposit actually is.
Choose a policy and press play.
A patch holds entries of several different rows at once (4×4 here, 128×128 in reality). Watch each row-slice report to its counter:
Each deposit is a whole slice compressed to one number — squared, summed, sent. The entries themselves never travel to the counter.