In the era of A.I. agents, many Silicon Valley programmers are now barely programming. Instead, what they’re doing is deeply, deeply weird. Credit...Illustration by Pablo Delcan and Danielle Del Plato ...

Morningstar Quantitative Ratings for Stocks are generated using an algorithm that compares companies that are not under analyst coverage to peer companies that do receive analyst-driven ratings.

Attention is a complex neural and psychological phenomenon, coming in many different forms and involving many different brain structures and mechanisms. Oft-quoted examples include arousal, vigilance ...