Our current scientific understanding uses two separate theories: gravity (general relativity) and the quantum world (quantum mechanics). These seem to contradict each other because gravity works on a large scale with smooth spacetime, while the quantum world is about the very small and operates in probabilities.

Scientists are looking for a "grand unified theory" that can explain both. Some promising contenders include String Theory and Loop Quantum Gravity, but they haven't been definitively proven yet.

More Sandeep Jaiswal's questions See All
Similar questions and discussions