It is you. CM is based on the Modern fonts used in scientific typesetting decades before Knuth made a MF version of it. I had often chance to give non-TeX (comi

It is you. CM is based on the Modern fonts used in scientific typesetting decades before Knuth made a MF version of it. I had often chance to give non-TeX (coming from humanities) proofreaders and copy-editors the choice between Times and CM. Almost all of them choosed CM.