Time is not an illusion. It’s an object with physical size | Aeon Essays

Not a backdrop, an illusion or an emergent phenomenon, time has a physical size that can be measured in laboratories

A timeless universe is hard to imagine, but not because time is a technically complex or philosophically elusive concept. There is a more structural reason: imagining timelessness requires time to pass. Even when you try to imagine its absence, you sense it moving as your thoughts shift, your heart pumps blood to your brain, and images, sounds and smells move around you. The thing that is time never seems to stop. You may even feel woven into its ever-moving fabric as you experience the Universe coming together and apart. But is that how time really works? According to Albert Einstein, our…

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