The nonsense about how the flavour gets more complex over time is just that: nonsense.

There's a video on YouTube where a hobby scientist takes a cup of water and doses it with an incredibly potent poison, a tiny fraction of which could kill. He then discards half the water, dilutes it, and repeats the process about 6 times. Finally he drinks the water and is totally unharmed.

The point is that after the pot's been half-emptied a few times, nothing remains of the previous mixtures.