I say it in jest, but I am speaking to the experience of the JWST. Initial designs were proposed starting in 1996 and didn’t get completed until mid-2010s after

I say it in jest, but I am speaking to the experience of the JWST. Initial designs were proposed starting in 1996 and didn’t get completed until mid-2010s after many, many delays. It would be no surprise to anyone to say the 2150 probes will have technologies that haven’t been invented yet, and won’t for some time.