[bachback]

Seem like you don't see the x^n argument. It should be obvious. Satoshi/Hal Finney were well aware of this, see the link. This has nothing to do with SPV. Producing blocks is what's important.

[riprowan]

I searched the link. Satoshi did not post in that thread and there is no mention of "x^n"

Maybe you should present the argument, since it wasn't presented where you said I'd find it.