#physics

In December 2023, the journal Nanophotonics published a special issue in support of Ukrainian scientists. Prominent scientists contributed thirty-three papers to the special issue. Open access article fees, together with an additional donation from one of the authors, raised over €80,000.

Could time travel be possible? This question has been studied not only in science-fiction literature but also in theoretical works following Einstein’s discoveries. So far the answer has been that in order to time travel we must abandon logical consistency or face dramatic philosophical consequences. However, it now seems that this answer should be reconsidered.