[nickbarone]

I also wonder what happens if you sit with laurax for an extended amount of time - are you more able to make out the differences?

There's many cases where our senses are "designed" to notice changes, either over time or from the norm - which AFAIK is why you don't generally notice your own smell, and why after a few hours in a meat packing plan you stop noticing that smell as well.

An additional question is whether the naming of different laurax mixes increases your ability to distinguish them - the same way that having names for more colors appeared to literally let you see more colors.