Time: What Is It, And, Is It Real?

"What if time is not real, but an illusion? Isaac Newton believed time was absolute and ticked at the same rate for everyone, everywhere. But Albert Einstein shattered that view with the theory of relativity. He showed that time is intertwined with space to form what we now call 'space-time.' Time can stretch and compress. 

"But physicist Carlo Rovelli proposes an even more radical idea. Rovelli argues that time might not exist at all. He suggests that time is not a fundamental feature of reality but an in invention of our brains in order to make sense of the world, to impose a cause and effect to events so they are not nonchaotic. 

"Craig Callender, a professor of philosophy, also supports this idea. The idea of time as an illusion comes from quantum mechanics. Einstein's theory of general relativity treats time as an intrinsic part of reality. But in Quantum mechanics, time isn’t malleable, and doesn’t change like other properties of a quantum system. Recording the passage of time requires an observer to consult a clock external to the quantum system."

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Could TIME Really Be an Illusion?