Can humans go to the Oort Cloud?

Is it really feasible for humans to journey all the way out to the Oort Cloud, which lies far beyond the realm of our solar system's planets and even its outermost layer of icy bodies? Considering the vast distances involved, the intense radiation and cold temperatures, and the challenges of maintaining life support systems for such a lengthy period of time, is such a voyage even possible with our current technological capabilities? And if so, what would be the motivation for embarking on such an ambitious and seemingly impossible endeavor?