Cool. Good article - which shows exactly what I said.

Solve is not the same as reduce/improve/alleviate.

As Musk knew full well when he tweeted it. No one has a solution for it, the best you can do is alleviate it for a bit.

Is he being a pedantic dick ? Yes. Did the original tweeter provide a plan to solve world hunger. No.

He provided a plan to reduce world hunger for a time. It's not a solution, it's a reduction in misery which I'd be very happy if Musk paid for. But it's not making world hunger entirely go away even short term let alone long term.