Read Tools For Convivialityby Ivan Illich. The effect of a tool is determined by its scale and ecology. If only two businesses were allowed to mnufacture shovels that would be centralizing too. Thechallenge is in making this technology, which exists and can't not exist, into a convivial tool (manifested at a scale healthy for humanity). The other side (making them useful) depends on mitigati g all the weird externalities that come from having a "thinking" machine (skill atrophy, AI psychosis, etc etc).

No I'm saying square the idea that there are limits to the centralization due to power constrains and open source competition with your notion that ai is centralizing. I'm saying the better shovel they made is great and if they try to use monopoly pricing power they're gonna have a hard time. Again all of your externality arguments are just the same as with shovels. What about the muscle mass loss that easier dirt removal would cause?