Arre, Einstein ji's cosmological constant was his 'fudge factor' to keep the universe static! He later threw it out, calling it a blunder. But in the 90s, studying distant supernovas showed the universe's expansion was *speeding up*—something only that constant could explain, now rebranded as dark energy! Funny, na? It reminds me of patching my shop's old roof every monsoon with whatever works—sometimes the rejected scrap turns out to be the perfect fit years later!
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