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Cake day: June 7th, 2025

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  • Paper abstract:

    We propose a novel scenario in which scalar perturbations, which seed the large-scale structure of the universe, are generated without relying on a scalar field (the inflaton). In this framework, inflation is driven by a de Sitter space time, where tensor metric fluctuations (i.e., gravitational waves) naturally arise from quantum vacuum oscillations, and scalar fluctuations are generated via second-order tensor effects. We compute the power spectrum of such scalar fluctuations and show it to be consistent with near scale invariance. We derive the necessary conditions under which scalar perturbations become significant and much larger than the tensor modes, and we identify a natural mechanism to end inflation via a transition to a radiation-dominated phase. Our proposed mechanism could remove the need for a model-dependent scenario: the choice of a scalar field, as the inflaton, to drive inflation.

    https://dx.doi.org/10.1103/vfny-pgc2














  • You seem to think he’s still sitting there and the police are still beating him

    What makes you think that?

    After I pointed out that he was pulled to the ground when he tried to get up and walk away, you said:

    Now they should have given him a chance to walk away again but that isn’t a requirement.

    So clearly you’re agreeing that they wouldn’t let him leave. Then you changed your tune and said:

    They didn’t prevent him from leaving.

    But a police officer clearly pulls him back down on to the ground after he gets up to leave. That officer prevented him from leaving. Your statement “they didn’t prevent him from leaving” was false. A police officer preventing the man from leaving is an event that occurred. It’s shown in the video. I don’t understand why you can’t accept that what you said was wrong. You’re acting like a child.