Pierce Space-Time With a Laser?

To what end? For what purpose?

It seems to me, we'd end up with quite a few risks of utter annihilation if this were to succeed.

All of the Williamsburg hipsters would use this to have their septum (and unspeakable parts) pierced.

Indeed. The first two words that popped into my head when I saw the phrase powerful enough to pierce space-time are "vacuum" and "metastability".

Let's not erase the universe.