[whiplash451]

It's very hard (and almost irreconcilable) to lead both Applied Research -- that optimizes for product/business outcomes -- and Fundamental Research -- that optimizes for novel ideas -- especially at the scale of Meta.

LeCun had chosen to focus on the latter. He can't be blamed for not having taken the second hat.

[HDThoreaun]

Yes he can. If he wanted to focus on fundamental research he shouldn’t have accepted a leadership position at a product company. He knew going in that releasing products was part of his job and largely blew it.