The Schrodinger’s Cat paradox
Schrödinger's cat is a thought experiment, sometimes described as a paradox, devised by Austrian physicist Erwin Schrödinger in 1935. It illustrates what he saw as the problem of the Copenhagen interpretation of quantum mechanics applied to everyday objects. The scenario presents a cat that may be simultaneously both alive and dead,a state known as a quantum superposition, as a result of being linked to a random subatomic event that may or may not occur. The thought experiment is also often featured in theoretical discussions of the interpretations of quantum mechanics. Schrödinger coined the term Verschränkung (entanglement) in the course of developing the thought experiment.
source:wikipedia
Still no idea what schrodinger's cat paradox is?? Well, i wont blame you, wikipedia is the most confusing and unnecessary information giving websites ever made by the human civilization.
So lets start with a simpler explanation. According to the schodinger's cat paradox, a alive cat is kept inside a box with a poison in it, and the poison has 50% chance of breaking down and spreading, causing death to the cat, and an equal 50% chance that it wont break when we open the box to see if the cat is alive or dead. So, if we open the box to see whether our cat is alive or dead, we have equal chances of cat being alive or dead. While we are looking at the box, and have not opened it yet, within the box, the cat exists in a state, what scientists call "Superposition State" according to which, till the box is closed, the cat is dead and alive simultaneously.
Now talking about the cat point of view, and what she might be seeing inside and remembers when we remove her dead or alive totally depends on us. If she dies on opening the box, her dead brain will have the memory that when I opened the box, the poison bottle broke and she died(she might be cursing me right now). But talking about the case when in which we remove the cat and she is alive, she will remember that the bottle of poison didn't break, and we removed her safely. Still finding it hard to swallow??
Well, schrodinger got this paradox, which is also believed to be the biggest and unsolved paradox ever in the history of science. This experiment was suggested by schrodinger to show that how actually the "quantum mechanics" works. If we look at the object, the result can't be the same if we are not looking at it.
Einstein did not like the idea of poison and opening box, so he gave a different scenario..according to Einsteins model of paradox, a cat is put inside a box with a gun powder or grenade, that have 50-50 chances of exploding. So its explosion can either kill the cat or if it didn't kill the cat, the cat will come out safety.
More or less, this is less of an experiment and more of a philosophy that even after so many years, still scares the hell out of scientists, who work in the field of quantum mechanics. Though the scientists haven't got success in making a machine to perform this experiment, which makes it the most scary yet interesting paradox ever.