there must be a lot that has not changed through time, that remains fairly much the same today as it was three-hundred thousand years ago, or much of it even three million years ago and further back
like physics hasn’t changed much, I mean the physics of the world and universe, not the formalism, the subject, not the work of humans studying it, no the thing itself, the actual physics of the world that existed extending back before any human had an idea about it, or shared ideas about it
what a fortunate thing it is that the physics of the world has had some continuity about it, sameness through time
like locally here on earth gravity is fairly reliable, it’s probably changed some over time but it does the same sort of thing, nobody needs worry about it reversing suddenly and flinging everything into space
the sun’s up there, or over there a bit now points up over to my right keeping earth in a reliable orbit, well it’s a bit of mutual effort really, earth has mass apparently, so they’re constantly communicating with gravity, earth of course would like to detach and head off in more of a straight line, but the sun has the necessary force of attraction to keep earth in orbit, and has been doing that for a long time
and the earth is spinning they say, which would explain the sun rising in the morning, traversing the sky, then disappearing off the horizon days’-end
sunlight has probably been the same for a long time, of course the power output and spectral distribution may have changed some, what makes it down to the earth surface may have changed some, but the fundamental properties of light and radiation have remained the same
that objects on the earth surface block light and cast shadows is the same
what a fortunate thing shadows have not given up doing what they do, got bored and despondent or something, needed a change, formed a group perhaps, decided they weren’t going to be kept in the dark any longer
which brings me to attributes of biological life, or organic life maybe, that also largely haven’t changed through time
say humans, for example
anyway my question is of the biology of humans, and what of human lives really hasn’t changed, say modern humans have been around for three-hundred thousand years or more, could be quite a lot more, perhaps even half a million years
there’s got to be a lot that hasn’t changed, like just walking between two places, walking is the same, sitting is the same, laying down is the same
sleeping is probably the same, and i’d venture much of the experience of wakefulness is the same
babies crying probably sounds the same
my view is much of the modern world is the same as way back, largely unchanged, which isn’t an altogether bad thing
so i’ve been contemplating whether notions of change lend to an ideological dimension, that it’s an ideological device, or can be, i’m considering the extent it may be
large part of the natural world does as it does with no effort from humans at all, further humans have no influence over much of that, so i’m wondering about the status of all the structure that is nature, the likelihood it might get taken for granted, or worse