… is from page 400 of the 2011 Thomas Sowell Reader:
People who are very aware that they have more knowledge than the average person are often very unaware that they do not have one-tenth of the knowledge of all the average persons put together.
DBx: Yes. But Sowell here nevertheless overestimates the knowledge of the typical smart and genuinely informed person: that person hasn’t one-billionth of the knowledge of all the average persons put together.
