[Klaus]

The meaningful limit of the test procedure (and most lenses) is 50mp.

And I doubt that testing will continue beyond 2021 anyway.

  Oh ..... what are you saying ??

Which part r u referring to? :-)

The accuracy of chart-based testing depends on the print quality. This has limits. At some stage, you have to scale up the size of the chart - and that has practical limits.

As for the comment about 2021 being the final year - this website can't operate on hot air. It requires money.