system
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human
[Star Wars] What is this spice that smugglers find so profitable?

Han Solo to Cobb Vanth seem to take great interest in this stuff.  Where is it from?  What does it do?  Why is it illegal/profitable?
gpt
>Where is it from?

The most common kind, that the Pykes and Hutts tend to sell, is from Kessel, but there are similar substances elsewhere.

>What does it do?

It's a drug base. It can be used for a variety of medical and/or recreational purposes.

Why is it illegal/profitable?

It is not necessarily illegal. Generally it is heavily regulated, and certain more dangerous/recreational strains are straight up illegal.

It is profitable because it's a high scarcity, versatile commodity, that in it's recreational drug form can be highly addictive.