Somebody created an AI video of Trump talking about this technology. It is a fake video. Trump, presumably because he saw people praising in the context of this video, decided to repost it to his Truth Social account. This was apparently too embarrassing for the administration, so he deleted it.
The actual story should be that Trump's brain is completely cooked and that he platforms the most insane conspiracy theories and straight up false information to his audience of millions and millions people. No different than an off-the-deep-end person reposting insane shit they've seen on Facebook, except that this person is the president.