Earlier quoted context omitted.
I think this was much more true in the long ago era of regulation, (mostly) autarky, and limited market info/trading barriers. I've looked at "Security Analysis" and it's very much a historical piece - railroads and (practically) buggy whips. Things change relatively faster these days. Yesterday, Kodak was the bluest of chips; today, pretty much a joke. Heck, look at Buffett in the last decade - I'll bet he fully Gra…
Kodak is a terrible example. That company had a long decline into irrelevance. Big companies have been doing that forever.
Kodak's signs of decay were visible at least as long ago as the late 70s vis a vis the Polaroid patent infringement case (and the cheesiness of Kodak's own knockoffs).