I find this fascinating. I assumed the opposite when having to chose which was which. It goes to show that much of what we associate with a given optical signature can be replicated in post-processing.
Is there really any need to buy a $4000 Summicron when, with a few sliders in Lightroom, you can duplicate its look with a $200 Chinese made TTArtisan? Is the whole ‘optical quality’ issue, after a certain point, now a non-issue? If so, why buy the Summicron?