IS REALITYJUST CODE?
Evidence from quantum physics, mathematics, and philosophy suggests our universe might be a massive computer simulation.
What is simulation theory?
Simulation theory (the simulation hypothesis) is the idea that the universe we live in could be a computer simulation run by a highly advanced civilization. In 2003 philosopher Nick Bostrom turned the idea into a probabilistic argument; since then physicists, computer scientists and tech leaders have taken the question "are we living in a simulation?" seriously.
Simulation A explores the question through evidence, interactive experiments and thought experiments. Pick one of the topics below or go straight to the Free Will Test.
Explore the Evidence
Evidence
Each striking on its own, undeniable when considered together.
Read more →Quantum
Physics' strangest experiment, simulation theory's strongest evidence.
Read more →Math
The same mathematical patterns everywhere. Coincidence, or algorithm?
Read more →Code Traces
Computer codes hidden deep within physics and the computable nature of the universe.
Read more →Glitches
The simulation's "bugs": Unexplainable phenomena.
Read more →Fine-Tuning
Change any of the 26 physical constants by a millionth and the universe couldn't exist.
Read more →Who Says So?
The world's brightest minds take this question seriously.
Read more →Free Will
Press Left or Right at random. The system predicts each choice before you make it. Can you really be random?
Read more →Test
Test yourself: ten questions, four options, one right answer.
Read more →Decoder
Translate your message into the simulation's language.
Read more →Simulation A: Beat the System
The System learns your choices and seals its prediction before you tap. 24 layers, five experiments, a new experiment every day. Can you really be random?
iOS and Android versions coming soon.
Are you in a simulation?
Measure how well you know simulation theory with a 10-question quiz: are you an NPC or Neo?
Reality is a simulation?
Quantum mechanics, mathematical constants, the holographic principle, universal speed limits, the Planck scale... All this evidence converges to a single point:
"If we were living in a simulation, we would experience a reality exactly like our current universe."— Neil deGrasse Tyson
Elon Musk stated the odds of us not living in a simulation as "one in billions." Physicists, philosophers, and computer scientists are taking this question increasingly seriously.