note that I said “Even @haider1” because he is often optimistic, but he has informed me (with receipts that he shared) that he expressed som…

Gary Marcus references a conversation with someone named Haider, noting that despite Haider's typically optimistic outlook, he has shared documented evidence of expressing concerns about a particular issue. The post appears to discuss skepticism or caution regarding an unnamed topic, with Marcus using Haider's pessimistic departure from his usual stance as notable evidence.

Source: Gary Marcus (X) | 2026-05-12