FLEPS is a seismologically unstable planet in the Ventura sector which is mined for its exotic exudations by the Flepsico corporation.  Its history of wealth generation and wealth concentration was fairly unremarkable before the arrival of a few individuals supplied with intellect-enhancing Paraíbite.  Then, though mining and trading and generation of wealth continued, off-world friends and relations soon noticed a difference in the communications they received from Fleps.  Messages became shorter, with more limited vocabulary, and some people stopped writing altogether.  Even more worrisome were the results when people visited Fleps for the express purpose of finding out what was going on.  They seemed to soon forget that intention, and to just settle into a life of being hard-working Flepsies.  It was not until the arrival of an intrepid Paraíbiter from Lestock that the galaxy learned the secret of Fleps.  High-ranking company officers had developed a means of inhibiting the thoughts of the entire population through the transmition of electromagnetic radiation.  Only Paraíbiters were immune.  So there is now very little immigration to Fleps, but its population remains stable, and there are always a few extremely wealthy people who are willing to join Flepsico and make even more money exploiting the hard-working little-thinking Flepsies.