Sci & Tech● Low23m ago · Nov 15, 2026, 3:00 PM
Does time really exist or is it a persistent illusion?
GlobeAlert Desk · curated from Folha de S.Paulo · Brazil · global
Imagine you are sitting on a train, moving at a constant speed. The curtains are closed, so you cannot perceive that you are moving. A lamp hangs by a chain in the center of the carriage. When someone turns it on, your human eye perceives that the entire carriage lights up.
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