Above the humid warmth atmosphere of 77 degrees F, A super dense sphere denser than Gold glows a bright red at 1550 degrees F. Strangely enough, the moon orbiting the Brown Dwarf sits within it's radiation belt. The radiation belt of Jupiter is roughly 600 times that of the Earths, and about 20 times that of Saturn. With this in mind, the radiation belt of the Brown Dwarf is possibly far stronger than even Jupiter's. If the moon is unprotected, radiation would bombard it's surface sterilizing everything, stopping life from evolving. It's also been noted by some astronomers that radiation belts could strip an atmosphere of an unprotected moon.
Fortunately, this moon is about 8 times the mass of the Earth and possess a strong magnetosphere, healthy level of geological activity driven by it's elongated orbit around the Brown Dwarf and the tug of war of it's sister moons and a thick atmosphere. Surface gravity is about 2.1 times that of the Earth's. This is very uncomfortable for current biological humans, but the coming technological singularity, this will completely change.
The technological singularity is foretasted to occur roughly in the mid 21st century will allow biology and mechanical technologies like computing to merge like never before. This will give way to far high intelligence that you couldn't even dream of! Virtual reality worlds realistic enough for one to live in, hundreds of thousands of them able to fit into a 1 kilogram mass of computing which carries a theoretical limit of about 27 bits 10^42 CPS for a cold very low powered computer and about 5*10^50 for a very hot computer that can use plasma, and thats just on the Nano-scale. There holds the possibility of the Femto-scale and possibly more exotic possibilities. For a realistic simulation of the Earth to the point you won't be able to tell the difference, the processing power possibly won't even exceed 10^33-36.
We will merge with machines such as nanobots to become far stronger than we currently are while looking completely biological and natural. So the 21 M/S surface gravity will present almost absolutely no trouble to any settlement to this moon. The background radiation of this moon does not pose any threat since it's still within safe limits. It is however still much higher than that of Earth's due to the nature that it orbits so close to the Brown Dwarf which also orbits a star half the luminosity of the Sun, A G9V dwarf binaried with a red giant star M2.
For more information on the technological singularity, I recommend "The Singularity is Near" and "How to Create a Mind" by Ray