it's not my nonsense, I'm versed enough in physics to understand this stuff, you however are making some serious mistakes in understanding
That isn't what it is, I'm sorry, it simply is not. A singularity occurs when spacetime is infinitely curved (gravity is an effect we define as the curvature of spacetime) This has nothing to do with infinite density...lol. What you're saying is blatantly false, the density cannot become infinite because density, rather, mass is a finite variable, as per thermodynamics conservation. Let me break that one down real quick. If I have an object (Y) of infinite mass, and I remove X amount of mass, [(Y)-(X)=Inf.] For example, (Y) MUST BE Inf. (X) = 10 (it's arbitrary, you can choose any number), however it is, we have created mass, a clear violation. The singularity is due to Lorentz Contractions (or as you said, Length Contractions)this is due to the curvature of spacetime in accordance with gravity, causing acceleration, and thus speed, and thus contraction (to the external stationary observer).
A singularity isn't all that "strange" in contemplating, You have the schawzschild radius, for example, the sun, has about a 3km S.R., if the mass of the sun was reduced to >3km, we have a black hole, cool huh? The funny thing is, unlike your assumption, I have to point out that a schwarzschild radius is directly proportional to the mass of the object, again, infinite mass would result in an infinite schwarzsfield radius, which observably NOT the case.
woah there tito, you're mixing quantum physics and general relativity, that's a no no, one of the biggest problems today is trying to tie the two theories into one (you've surely heard the term unified relativity, that's what that calls for, it hasn't happened..) HUP is quantum Physics, space time curvature is General Relativity. (See quantum physics doesn't need gravity, cos in particle physics, in most areas, gravity makes no difference)
It's Planck's Constant = 6.62606896(~33) (10^-34(J·s)) the smallest? no. not really. Planck's is used to measure quanta; BUT WAIT,THERE'S MORE!
You have Dirac's Constant, which is smaller by a factor of 2(pi), I'll save you the actual equation, you can look it up. It also measures quantization, oooh, which is a phenomena...
Not really.