How hard it is to win 2 consecutive grand slams?

[Lgoel]

Can alcaraz become the first player for a long time, outside of big 3 to win 2 consecutive grand slams?
It seems being able to win 2 consecutive slams is a sureshot indicator of a ATG player.

Looking back
Djokovic/Nadal/Federer
Sampras/Agassi
Becker/Connors/McEnroe/Wilander/Borg

 

[Hitman]

Courier

 

[Benf15harp]

It’s hard af. I never even made to the finals of one. Smh.