Nothing! It's fun thinking about it. I think, he's trying to say that "time" is really not a thing, but rather our perception and understanding of time makes i

Nothing! It's fun thinking about it. I think, he's trying to say that "time" is really not a thing, but rather our perception and understanding of time makes it a thing. What we should see as time is actually some flow of causality. You cannot map "earlier/later than" or "same time" to causal reality, those qualities only refer to time as a scale, not as a natural occurrence of causality order. Or so I think.