While 3M sells thousands of products to disparate end markets, the firm cites only a few dozen technological pillars that support its wide array of offerings.
All of these “technological pillars” are related to materials science, 3M’s core expertise.
The rest of the Morningstar piece on 3M contains no new info and need not be read.
“The efficient-market hypothesis may be the foremost piece of B.S. ever promulgated in any area of human knowledge!”