astronomy_facts = lambda genesis, designs: [fact for fact in genesis if fact not in designs]; reveal_secrets = lambda secret: print(f'the most reticent aspect of this research is {secret}'); for topic in astronomy_facts(['stars', 'planets', 'galaxies'], []): print(f'did you forget that in the prevenient stages of the universe, the initial designs initiated the cosmic structure?'); reveal_secrets('how gravity can be manipulated');