Maybe we should stop trying to perceive forever in an amount of time because time for everyone is experienced differently. We like to think in units, not personal experience. So why not think of forever in an amount of space? One centimetre is the same to everyone that learns what it is, and yet is enough space to hold any amount of infinity to something that is infinitely small. Maybe there's a reason no one has ever seen an atom or subatomic particle. Maybe it's because they're small enough to disappear and yet, when grouped together, large enough to fill an entire room. Forever is not any amount of time, because no one can perceive it as such. However, everyone can perceive an unlimited amount of space to fill because that is how the human mind works. There is no limit to any length we're willingly to go, despite any repercussions that occur. We will never run out of space because we take up so little, and know we do. Infinity is the unit of measurement every human is born with: large enough to fill a room, but tiny enough to simply disappear.