tweetindex

Fei-Fei Li @drfeifei · 28 Jul 2026

In our taxonomy of world models, we called the simulator the linchpin: the place where agents can act, learn, and be evaluated. Our R2S2R engine can move robot development beyond slow, expensive, hardware-bound iteration toward more scalable and cheaper training and evaluation.
14 096Views
75Likes
6Reposts
6Replies
2Quotes
42Bookmarks

Is that a lot?

0.78×vs this author's median18 046 views is typical
43Percentile for this authorof 14 recent posts
0.76×vs 1M–10M median18 480 views is typical
1.36%Reachviews ÷ followers
0.63%Engagement rateof viewers reacted

Compare with the benchmark table →

Open on X →