Note that different people have different research approaches. The two old ladies check that none of them can see herself and the problem is solved! ;-)
The other older lady makes an experiment with motion and rigorously determines that she is ... well ... unsichtbar. :-)
Cutting Science Funding Today Costs Us More Overall (Synopsis) - “For me, it is far better to grasp the Universe as it really is than to persist in delusion, however satisfying and reassuring.” -Carl Sagan The President ...
11 hours ago