It is already taxed as capital gains though. Software (including AI), if sold either in isolation or with the entire company does trigger capital gains considerations.

If you're referring to some equivalent of wealth tax or inverse of accounting for deprecations in terms of assets, then that seems pretty problematic. 1) how do you asset the value of something until someone pays something for it? Unlike homes, where you can compare roughly to those around you, this seems much more dynamic for software / AI. 2) Let's say we are able to assess the value, so now a startup with software but no revenue has to pay taxes? Where does the money come from?