very implausible. carbon, nitrogen, oxygen, silicon and iron became available en masse around six or seven billion years ago already, and that doesn’t discount the possibility that some terrestrial planets could have formed earlier, but just with less frequency. so some terrestrial worlds might have billions of years' head start over us, unimaginably long by civilisation scales

that's interesting. however, once you have a work permit, it does not really matter whether you are a citizen or not, unless your job post requires security clearance or language skills that you do not have as a foreigner. also as a foreigner you pay the same unemployment insurance and get the same benefits as other workers, so you can even prolong a permit while on unemployment. when i first got my permit, my employer had to pay me *more* than he would pay a local worker, this is done so that only those foreigners get the permit who are indispensable and for whom no readily available alternative exists.

well, 13 mm per second is just about 78 furlongs per fortnight. here, i converted it for you.