Art by: Dennis Hoogstad

Thought experiments have been conducted for centuries by some of the greatest minds in history.

At first glance, these mental exercises seem to offer little in the way of practical application.

However, th...

Art by: Sofia Ayuso

What happens if someone time travels to the past and kills their grandfather before he had children?

In linear timelines that fix "the present" as a mid-point betw...

Art by Alex Gray

"Hilbert's paradox of the Grand Hotel AKA "Infinite Hotel Paradox" shows the counter intuitive property of infinite sets."

Thanks Wikipedia.

You have a hotel with an infinite set ...

Art by: Julia Maystruck

Schrodinger's Cat illustrates the paradox of quantum superposition: the idea that several quantum systems can exists in several quantum states at the same time.  

1. A cat 🙀 flask of poison 🧪 and radioactive ...

The bartender says, "we don't serve your kind in here."

Two time travelers walk into a bar