Creating a fermi condensate is very difficult. Fermions obey the exclusion principle, and they are not attracted to each other. They repel each other. Jin and her research team found a way to merge them together. They adjusted and applied a magnetic field on the anti-social fermions, so they began losing their properties. The fermions still kept some of their character, but behaved a bit like bosons. Using this, they were able to make separate pairs of fermions merge with each other over and over again. Mrs. Jin suspects that this pairing process is the same in Helium-3, also a superfluid. Based on this information, they can hypothesize (make an educated guess) that fermionic condensates will flow without any viscosity as well.