Fluidity

Yes, fluidity is dependent upon its relation to the present. But as with certain friends, who are like good books with many pages, we should take breaks away from them, put them down occasionally with a good bookmark in place. Pause is pressed. The present moment no longer continues in our minds while we are away from each other. There is no dwelling upon or stewing over done. No grudge burning holes nor puzzles requiring time to find solutions. The present moment has been forgotten but is not lost, because you used your bookmark. And so when it becomes time to return to the story of knowing your friend further, after the period spent apart, it is like an unpausing of the present. Reopening at the page where you left them, removing the bookmark, finding the precise line and continuing. A seamless sewing of presents despite them both occurring in different ages.  And so an act of fluidity does not need to be present all of the time, it just needs to feel like it hasn't spent time away from the present. Suspended animation.

Fluidity in the sense we're talking about here would then be the feeling of the absence of interruption. You could be being interrupted all the time. It's whether you subjectively feel that have you been interrupted or not which is important. A friend with epilepsy would stare blankly for minutes before returning to the present knowing nothing of this interruption.

This is not about the universal present. I'm talking about the subjective present. I'm talking about fluidity in the context of the shared subjective present of two people whose shared reality is suspended in time when they are apart, and continues as it had been whenever they meet again. 

As opposed to the two friends who continue living the present moment of the imagined other through their imagined selves in this present with the imagined other the very moment the two are separated. They cannot forget about each other. They must continue remaining in some sort of present, even if it must be fabricated by themselves. This is a relationship devoid of all fluidity and flow.