I think this is a perfectly valid question, as there is some precedent.
There is a loudspeaker that was made in the late 1950s that has probably been used by more designers to 'voice' amplifiers (and other speakers) than any other. Peter Walker's Quad electrostatic speaker. It still (60 years later) stands for many as the pinnacle of speaker design. For, what it did to the all-important midrange was, and some say still is, unimprovable.
If this is indeed so, then, by extension, it is possible that the EMT 927 is, as Thuchan states, the best turntable ever made. Of course, we have to believe that it's possible that there is something better, but evidence might not suggest this.
If the job of a given piece of audio equipment is to extract information from a source that has a finite amount of information to give - and to do no harm in the process - then there might be a 'fininite-ness' in the process. There is no absolute reason to think that progress is infinite. For emotional reasons one might wish it otherwise, but this is not necessarily true.