So am I to believe some tech figure on Twitter with a large following who has an unnamed source? Or Sam Altman, who himself has said that no work whatsoever ha

So am I to believe some tech figure on Twitter with a large following who has an unnamed source? Or Sam Altman, who himself has said that no work whatsoever has been done nor will be done on GPT-5 in response to the rampant speculation this single tweet created?