 Well, it turned out initially we thought, I thought for 20 years, that it had to do with electromagnetism. So that's electricity and magnetism together. But we found out in 2018 it was really just a static electricity effect, which meant no current and the charges are static. That's a big distinction. It just happened to be the area of expertise that I am at NASA is being an electrostatic expert for the agency. So once I knew that that's what it was, I was able to hit the ground running.