Quantum uncertainty. Once you reach a certain point you can know where something is, you can know how fast it's moving, and you can know which direction it's travelling in, yet so far it appears to be impossible to know all of those things about it at the same time. We have no idea why.

Then there is a limit to how small of an object we are capable of "seeing" at all, based upon the microscopy technology we have. We're still seeing new, smaller components of matter all the way down to that limit, so it's entirely reasonable to suspect that there are yet smaller things.

Quantum uncertainty. Once you reach a certain point you can know where something is, you can know how fast it's moving, and you can know which direction it's travelling in, yet so far it appears to be impossible to know all of those things about it at the same time.

Then there is a limit to how small of an object we are capable of "seeing" at all, based upon the microscopy technology we have. We're still seeing new, smaller components of matter all the way down to that limit, so it's entirely reasonable to suspect that there are yet smaller things.

Quantum uncertainty. Once you reach a certain point you can know where something is, you can know how fast it's moving, and you can know which direction it's travelling in, yet so far it appears to be impossible to know all of those things about it at the same time.