You say that as if machines don’t get dirty and still require a good amount of hygiene/cleaning to keep up
Don’t get me wrong though because I am also in favor of automation only because I believe it will make some parts of work more bearable, minus the job displacement problem caused by our current economic model…
You need to know where to look for said evidence, this is one new lead. Measure planet wobble for a few years and see if there’s anything. Other experiments can and will be carried in parallel in the meantime.