It is not a bell curve but a right triangle. We know this is true because there are more dumb people than smart people and the average of this right triangle is 100, thus I conclude with certainty that the IQ distribution is a right triangle.
Here is a formal proof:
Most people are right handed
Most people are straight
Most most right handed people must be straight
Since IQ is hereditary and right handedness is also hereditary, we therefore conclude that most people that are right handed and have an IQ are also straight
Create a chart that's axes are perpendicular finite and positive.
Connect the endpoints of the axes with straight line.
The result is a right triangle of IQ distribution

Any criticism of this proof is welcome. If I missed something let me know.