An Object-Oriented Program!

Falling leaves, chirping birds,
blue skies, trees, lakes, twinkling stars,
humans...
Who wrote the code of this program
of space-time
where we all function?

This program has bugs
like all other programs,
but it's exceptional
in one aspect:
It allows
its objects
to fix their bugs.

Though
the fixes are not perfect
and final,
they can be upgraded
by continual service packs,
by the objects themselves,
not by the programmer.

Amazing!