The intro mentions that plotting telescope scale versus cost over the last few decodes, a 150m telescope would be $35bn. More generally, the high-res-low-colle

The intro mentions that plotting telescope scale versus cost over the last few decodes, a 150m telescope would be $35bn. More generally, the high-res-low-collecting area setup is already hugely valuable in interferometers. This is, in a sense, a _very_ long baseline interferometer.