Well you have to admit that in Laver's time period the weaker field, less people playing tennis, people not utterly dedicating themselves to tennis, professional tennis being in its infancy, only 2 surfaces, less prize money motivating people, inferior training/dietary conditioning/psychological training/physical conditioning would put Laver's GOAT status into question..
No.
1.the players in Laver's time WERE utterly dedicated to tennis, perhaps more so than many pros today. They worked/practiced VERY hard, they were NOT out partying or doing commercials or playing video games
2.2 surfaces: so? The adaptability was there, the most extreme surfaces.
3.LESS PRIZE MONEY MOTIVATING PEOPLE??? WOW. How incredibly misguided. Even some pros from the last few generations have admitted that this may have HURT motivation for some of their peers
4.inferior training/dietary conditioning/psychological training/physical conditioning? IS THIS A JOKE? Although, I note, this has been part of the long running myth in athletics, that we "train harder/smarter" now, and that we "know more". REALITY: a great many "trainers'/"coaches" love to scam people into believing this. Simply not true. The more we learn, the more we realize how silly many of the current "trends" are. No, you don't need a rubber beach ball to develop core strength or balance. Meanwhile, we revinvent old-school methods and promote them as if they were new. CHOP WOOD YOU SAY?? WOW! FUNCTIONAL TRAINING??? In any case, the pros from Laver's era were in FANTASTIC shape. Very few who know the era dispute that. Hopman's boys were TOUGH and ABSOLUTELY FIT, by any standards.
What has changed is:
1.widespread doping
2.larger athletic pool entering tennis
#2 has enhanced the average athleticism of the average player, I doubt very much it has changed the bar at the elite level much. #1 is a factor but it's an external one that cannot be quantified...if anything, it's allowed less talented players to compete at a higher level relying on pure physical characteristics.
Yet, still, somehow this, troglodyte, Rod Laver, who, wandered into a country club and found a racquet, while training part-time, with no real knowledge of conditioning etc. managed to have a FAR MORE COMPLETE game than almost any pro today. Managed to have a game, that Mcenroe and Sampras (among others) looked up to. Even though, he was really nothing in terms of talent or effectiveness by today's standards right? TROLLS.