Hence I can logically say the origin of the universe cannot be explained.
You can say it can't be explained using the precepts of logic which philosophers have developed over a few centuries. However, unless you can do the math, you can't say the origin of the universe cannot be explained by the sort of ridiculously high level, multidimensional, math/particle physics/geometry that a small number of mankind's finest minds are still developing. Day to day logic stops applying when it comes to this sort of stuff. Just accept it, and enjoy the ride as science takes us to ever weirder places ! :-)
Could there be any greater conceit, than for someone to believe that the universe has to be simple enough for them to be able to understand it ?