> * It's 4,000 light years away, so the butterfly effect is irrelevant because the light is already on its way, The butterfly effect might still apply to the e

> * It's 4,000 light years away, so the butterfly effect is irrelevant because the light is already on its way, The butterfly effect might still apply to the earth's atmosphere and the scientists/engineers maintaining snd operating the observatories, though. But this could likely be compensated for by cutting off some of the last digits of the measured values.