And to be clear, whether competition is possible / what's the right trade-off between efficiency and robustness, is really important to grapple with. If we don't know how to e.g. break up Google, proposals like having workers on boards become dramatically more essential.
I recently found https://ilr.law.uiowa.edu/print/volume-100-issue-5/all-i-rea... which was a great read. Eugene V Debs had a similar conclusion about consolidation being inevitable, but thought that that was a good thing.
And to be clear, whether competition is possible / what's the right trade-off between efficiency and robustness, is really important to grapple with. If we don't know how to e.g. break up Google, proposals like having workers on boards become dramatically more essential.