> mirroring obvious thoughts that actual physicists have of course already thought of decades ago, and in much more detail.
They will eventually die and a younger generation will enter the field who don't know why those ideas were dismissed. For all you know you're shutting down a 14-year-old (either directly or someone observing) who is actually interested and may become one of those physicists.
> They will eventually die and a younger generation will enter the field who don't know why those ideas were dismissed
No, the younger generations are constantly entering the field, slowly learning and building up the tools required to think about these sorts of things. By the time they've done that, they don't need to have their silly ideas shut down, because they do that themselves, using the knowledge they've built.
And when they do have novel ideas, they have the mathematical and scientific tools to actually argue why their novel ideas deserve expensive, scarce telescope time, unlike the armchair pop-sci wannabe cosmologists (myself included) on HN.
They will eventually die and a younger generation will enter the field who don't know why those ideas were dismissed. For all you know you're shutting down a 14-year-old (either directly or someone observing) who is actually interested and may become one of those physicists.
It's roughly equivalent to https://xkcd.com/1053/