Incorporating mass makes sense in considering whether the intelligence type would be useful for an organism. For example, a little sea creature with the capabi

Incorporating mass makes sense in considering whether the intelligence type would be useful for an organism. For example, a little sea creature with the capability of an Apple II (not the programs, but the capacity to process data and respond to stimuli) might be competitive if the neural tissue were compact and light, but not if it had to be the mass of an Apple II. So its capacity to process 10^5 bits per second per kg of weight is not that useful. Though apparently more efficient than plants' processing methods.