Well, a quick search turned up this: Vacuum Arc

However, like the above comment, it seems to refer to freeing electrons from the conducts, so, IMHO, you no longer have a vacuum.

If you could somehow maintain a perfect vacuum; I wonder how this concept Virtual particle would come into play (or if it would at all).

With sufficient voltage, everything is a conductor.

With insufficient voltage, everything is an insulator.

Neither may be conducive to those roles, but everything has some conductivity and some resistance (super conductors being a possible exception).

So it’s just the number 95% . . . Cause I know I’m batting a 1000 on this idea 🏏.

I feel like I’m being told something. . .

Does subliminal advertising actually work?

Undefined term - “long term”. Management doesn’t know what that is.