World Model is A Waiting Room

Welcome back, AI Enthusiasts!
$2.3B went into companies calling themselves world models this year.
Yann LeCun and Fei-Fei Li raised a billion dollars each on the term, and still cannot agree on what it means. A company one month old is in talks at $3.7B with no product and no website.
So let's get into this week's Deep Dive: what is actually true about the world model race?