Which barriers do you considered to be the most problematic (and why)? I think that using todays CPU/GPU on a modern phone, one would be able to run a model cap

Which barriers do you considered to be the most problematic (and why)? I think that using todays CPU/GPU on a modern phone, one would be able to run a model capable of a Word Error Rate of under 10%. I mean, it would take up maybe 1GB of RAM. And battery life would be impacted, but still a quite usable phone? And that seems like it would give workable quality data for some topic / user modelling? I am assuming one would limit triggers to cases where the person speaking is within say 2 meters of the phone, which seems ok limitation for a phone - ulike for a home device like Alexa).