The former FAA head tussled with Musk and wanted to fine SpaceX for safety violations. He resigned after Trump won the election and hasn't been replaced.
Space advertising is not currently a problem, but the enterprise needs to be smothered before it has a chance to grow, according to a group of concerned astronomers.
Advocates say neurotechnology can encourage economic growth and the betterment of society. Others say it could fuel inequity and undermine democracy, among other possible unknown consequences.