Those who doubt Alcraz I suspect may follow just the scores and not watch the matches as anyone who has been watching Alcaraz will know there is no actual weakness in his game.But Alcaraz looks VASTLY more promising than those guys. There isn't a single player that looked as much as "the real deal" as Alcaraz. How can you not see the gigantic difference between Alcaraz and all of the previous next genners... You would say the same if Federer was the upcoming player at the moment.
I have never seen Nadal look as lost on any court let alone clay other than on hard v Djokovic and Federer on grass than he did today v Alcaraz. Federer and Djokovic have 40 Majors between them.