You mean something like an "imputed labour" tax kind of like some places charge income tax on "imputed rent" to homeowners?[0] Though that may get messy as tra

You mean something like an "imputed labour" tax kind of like some places charge income tax on "imputed rent" to homeowners?[0] Though that may get messy as traditional human labour costs change. Maybe a straight-up imputed rent on the rental value of the machines? 0 - https://en.wikipedia.org/wiki/Imputed_rent https://en.wikipedia.org/wiki/Imputed_rent