Physics applications of asymptotically safe gravity

Okay, let's imagine you're playing with some building blocks and you want to build a tower that doesn't fall over. When you stack the blocks up, you have to make sure they don't wobble too much or else the whole tower falls down. This is a lot like how the universe works when we talk about gravity.

Gravity is what makes things like planets and stars stick together instead of flying off into space. But sometimes when we try to understand how gravity works on the tiniest possible scales (like with super tiny particles), we run into a problem.

The problem is that our current understanding of gravity doesn't quite match up with what we see in the universe. It's like we're missing a puzzle piece that would help us understand how gravity works in all situations.

That's where "asymptotically safe gravity" comes in. Scientists have come up with a possible way to fix this puzzle by adding something called a "fixed point" to the equations that describe gravity.

A fixed point is like a special spot that the blocks in the tower can rest on without wobbling. If we add a fixed point to our gravity equations, it means we can better understand how gravity works on the tiniest scales.

This might not seem very important to us building block tower builders, but it can help scientists understand things like the behavior of black holes and the origins of the universe. So, when we add a fixed point to the equations that describe gravity, we can learn more about the building blocks that make up our universe and how they all fit together.