I was asked to play in my lucid dream sandbox about this.

So, I played last night in my sand box. I am getting ready for work, so I can't write it out now, but I saw why this statement must be true. This is from the paper quoted.

[link to arxiv.org]
"An answer to “why no magnetic monopoles?” is now clear. So long as there were thought to
exist the electrical monopoles known as charges, a deep belief in symmetry demanded that we consider
and look for magnetic monopoles. This study concludes that there are no electrical monopoles. To this
extent, symmetry has been recovered."

My study (hehe) also concluded there cannot be any monopoles. Monopoles instability actually LEADS TO dipoles. They either collapse, or form dipoles. (I need to explain why...but later) Funny, I am looking at the stuff they cannot see. It has to do with contained spin forms that are spiral. What creates the spin forms? Light. Light is the only TRUE constant, therefor there are no fluctuations in the speed of the spin. The only way for dipoles to remain absolutely stable like they do, is with an absolute constant defining it.

More later.

Also, I played for about 2 hours with Klein Bubbles. Awesome. You know what I requested to 'see'? That's right. Black holes. BTW, they come in all sorts of shapes, not merely spherical. I imagine the ones nested at the center of the galaxies must be mainly spherical...but, they are absolutely incredible things! I even experimented with a supernova entering a black hole. WHOA! The result the volume was annihilated, but the skin still existed, although very shriveled up and emaciated. For relation, the size of the volume would be a house, and the skin would be a quarter after the interaction and implode/explode of the two.

Also, I experimented with injecting a massive object into the Klein Bubbles, and it resulted in a Klein Bottle effect.
[link to en.wikipedia.org]