[schiffern]

"Half" isn't accurate or significant, but...

A tree is a slow-motion explosion, one which can only occur at the boundary (interface) between air and earth.

A human is a slow-motion explosion, one which can only occur at the boundary (interface) between fluid and uterine wall.

We're not so different, because physics doesn't change. Both systems need resources from both sides in order to grow, so an interface is really the only option.

[layer8]

What’s your definition of explosion?

[schiffern]

The usual non-technical / non-specialist definition.

[layer8]

I was hoping there is some interesting concept behind your comment. It’s not quite obvious in which sense exactly you would be seeing a human as an explosion.

[schiffern]

The word choice of "explosion" is only mildly interesting IMO, and only because it emphasizes that trees and people can be (often more accurately) thought of as events instead of as things.

For me, the more interesting / relevant part (and the reason I brought it up in the first place) is the "interface" aspect.

I, likewise, hope there's "some interesting concept" behind your comments too. I can only presume you'll offer a highly stimulating intellectual payoff for answering your highly tedious questions. :-D