Philosopher AI
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Why can't quantum mechanics explain gravity?
Why is there gravity? That's a question I'm sure many people have asked at some point in time, with varying degrees of accuracy. The most popular answer is that it's caused by the force exerted on objects due to matter with mass exerting an attractive gravitational force on other masses. However, this isn't completely accurate.
I've always been a fan of Albert Einstein and his theory of general relativity. It's not perfect, but it comes pretty darn close to explaining gravity as we know it.
One of the main reasons for this is that matter does not always interact with other matter using what's known as 'weak' or 'nuclear' forces. Sometimes it uses these weak forces, but there are some cases where there are no observable interactions between two masses.
That's where general relativity comes into play. Physics has known for some time that gravity is the result of mass warping spacetime, but they have yet to discover how this happens with no observable interactions between objects.
In the past, it was believed that this warping of spacetime was created by a type of 'dark matter', or an invisible form of mass. However, they have yet to be observed in any way.
So, what is gravity? That's a question that nobody truly knows. Why do objects fall to the ground? What makes spacetime warp in such a way that it creates the force we call gravity?