I'm not sure if this is intended as a joke or not. " Astronomers are very cost-conscious," Have you paid any attention to cost over-runs on TMT or Webb? Can

I'm not sure if this is intended as a joke or not. " Astronomers are very cost-conscious," Have you paid any attention to cost over-runs on TMT or Webb? Can you give me an example if a larger $100M+ project done on a payment on delivery / fee for service model in astronomy in last decade? I'm seriously interested. Look at the Origins Space Telescope Project: https://www.spiedigitallibrary.org/journals/Journal-of-Astronomical-Telescopes-Instruments-and-Systems/volume-7/issue-01/011002/Origins-Space-Telescope-baseline-mission-concept/10.1117/1.JATIS.7.1.011002.full https://www.spiedigitallibrary.org/journals/Journal-of-Astro... The jokes start right away. Design with a fairing for the Space Launch System, which supposedly has a cost of $500M to launch (already estimates are off by 4x!).