Search-space press
A small seed casts a small shadow.
Deterministic expansion can produce mountains of useful output. An attacker who can enumerate the seed still takes the shortcut.
Hands-on evidence
Watch a weak seed collapse
A deterministic generator can stretch a seed into a very long output. It cannot make the original search space larger.
Looks like256 bitsWidth of generated output
Searches like32 bitsWidth of the seed space
Exhaustive model4.0 secondsat 2^30 seeds/second
Moss shows credited strength, not reachable-output coverage. The true reachable fraction is far too tiny for this grid once output width exceeds seed width.
Width is not uncertainty
An attacker enumerates at most 2^32 seeds, regenerates each 256-bit output, and compares results. Almost all apparent outputs are unreachable from this seed model.