Physicist proposes solution for spherical aberration

Pretty sure this is the discussion on the topic:

https://news.ycombinator.com/item?id=20369960

There are a few extra comments here:

https://news.ycombinator.com/item?id=20641380

Also submitted, the same story from other sources:

https://news.ycombinator.com/item?id=20637599

https://news.ycombinator.com/item?id=20646738

https://news.ycombinator.com/item?id=20649396

https://news.ycombinator.com/item?id=20650216

https://news.ycombinator.com/item?id=20653761

https://news.ycombinator.com/item?id=20654067