Couldn't you literally say that about any sport then?
Sports don't improve because a handful of individuals. They improve because the average quality of athlete improves, thus making it more impressive when new athletes stand out. That can take decades at times.
Yes we can, and do.
That's why we have these debates everywhere. From Michael Jordan and Wilt Chamberlain for basketball, Gretzky and Lemieux, Ali and Tyson, Mantle and Ruth, Jesse Owen and Michael Johnson, Pele and Maradona etc.
I stand by my statement. The greatest would always be great, no matter what the era. They were elite relative to their peers for their individual characteristics, not due to "the average". Today's athletes will always "look better" because the bar is being set higher, but that requires the bar to be set in the first place by the previous. The new generations have past achievements to shoot for - the past never has that.
But my argument is that the elite would still be elite if born in the future, as they would adjust based on what was available at the time. Why would people assume otherwise? Why assume yesterday's athletes would ignore and not use what's available today, if born today?
Einstein, Da Vinci, Tesla, etc... would still be genius today, despite the fact that the "average quality" of knowledge/education of the GENERAL population is higher than the past..... or do you actually think they would be "average" if born today?
Do you honestly think the engineers that built the ancient pyramids using slaves and primitive tech, would not do wonders with today's knowledge? Or you do actually think they would not do better than what they built 1000s of years ago?
That's the problem with your argument. You are using the general population to generalize the outliers. I argue that the elites are separate, and even if the general population "evolves", the elite would always be elite, no matter what the era.