Yes! This is the killer feature of TiddlyWiki. I think of it as some kind of intrinsic reward associated with cognitive outsourcing/offloading. Don't hear this mentioned often.

These "atoms" also seem like the fruit of the insight process, e.g. the moment when Leo Szilard conceived nuclear fission whilst waiting to cross the road near Russell Square. Oh! I just noticed the atom pun! Entirely accidental.

The "atomising" aspect is also key to making "molecules".