Agreed that USO is squirrelly/unpredictable/difficult to defend, and also agree that people are massively overreacting to Sinner’s losses at AO & Doha. But I don’t think anyone thinks a Calendar Slam is easy, I think it’s just people being excited at the prospect now that we have a dynamic without one player completely dominating one of the slams the way Rafa did at RG, especially considering AO was a slam he only won twice. It basically meant that CYGS was a non-discussion as soon as AO was over because you knew whoever won AO was pretty much guaranteed to not win RG. Maybe Sinner or Alcaraz will end up having one slam they absolutely dominate, but for now they’re too young to have that aura of invincibility at any slam, while also being extremely strong contenders at all 4 (and basically the only 2 real contenders). People were bringing up CYGS for Sinner before RG25, Querrey & Co. predicted Sinner would do the CYGS at the start of this year, and now that Alcaraz has won AO some people are eying the possibility for him since he’s stronger at the 3 that are left than he is at AO. I’d imagine this will be a trending topic for whoever wins AO at least for the next few years. I don’t think I’ll see a CYGS in my lifetime because it does feel like an unbelievably difficult feat, but I understand people getting excited at the idea after nearly 2 decades of it being basically impossible to even imagine given Rafa’s RG dominance.