zsd23 wrote: …As for paranormal activity, a lot of conditions can underlie it–some may be related to the imagination and hypnotic condition of the viewer(s), including a condition called folie a deux–referring to a shared delusion, some are simply manifestations via the power of belief, some are aspects of telekinetic phenomenon, which even neurologists have acknowledged as being caused by unusual and volatile energy generated by a person (not an otherworldly spirit). There are also infectious and projective aspects of human consciousness and the limitations of perception that are yet unknown that may explain manifestations of paranormal activity as well Read More
I wrote: Gaffluence wrote: Does the first law of Thermodynamics apply to magical energies too? The law being that, energy cannot be created or destroyed, only transformed (simplified version). The answer is no. Conservation of energy is due a temporal translation invariance as described in Noether’s theorem and the Lagrangian. Energy conservation is a consequence of invariance under time translations. Something more abstract than time would not be beholden to that invariance and thus would not be conserved. Basically, if it is not physical, it would not be temporal, and if it is not temporal, it is not beholden Read More
Supertasks allow you to accomplish an infinite number of tasks in a finite amount of time. Find out how these paradoxical feats get even stranger once randomness is introduced. What happens when you try to empty an urn full of infinite balls? It turns out that whether the vase is empty or full at the end of an infinite amount of time depends on what order you try to empty it in.
Throughout much of human history, people consciously and intentionally produced randomness. They frequently used dice – or dice-shaped animal bones and other random objects – to gamble, for entertainment, predict the future and communicate with deities. Despite all this engagement with controlled random processes, people didn’t really think of probability in mathematical terms prior to 1600.