[dmoy]

Yea, this is a more correct explanation. Not a patent lawyer, but raised by one lol.

Tangentially, it gets difficult in software because a lot of patents are .... maybe overbroad in their wording of claims. Lot of ambiguous looking landmines.

This is somewhat similar to business method patents (which were curtailed a little by the SC a decade ago, but were already known to be kinda sketchy for decade+ before that). Can't patent a pure algorithm, for example.