Time

[AFTT47]

The reality you just experienced still exists, just not your perception of it any longer. The reality that replaced the one you are no longer perceptive of existed prior to your perception of it.  All realities (possibilities) exist.  You only perceive any one reality at a time and that is based on the overall QM in play.  As long as you are in any single reality, nothing changes and if you were to stay in that reality for 'a million years', you would never be aware of the 'passing of time'.  The 'passing of time' is the change of perception from one 'reality' to the next.

This is great but you're starting to sound like a New-Age nutjob, to be honest. Is this actualy science, that every possible reality exists and only our perception of the changing of these "slides" can be called time, but outside of our subjectivity, time doesn't make any sense -- might I say, to the universe itself?

You need to grasp that the reality of the universe is in no way dependent on your ability to intuit it or understand it. It doesn't care if it fits into your personal philosophy, common sense or comfort zone. It simply is. Science is determining what this reality is through cold logic and experimentation - free from human bias. And science says some things about time that are pretty hard to grasp but they have been tested and demonstrated to be true. That's what a logical person goes by. Not by his/her biases and limitations but by what has been demonstrated to be true.