B.o.B Gets Ethered by Neil deGrasse-Tyson on New Track ‘Flat to Fact’B.o.B Gets Ethered by Neil deGrasse-Tyson on New Track ‘Flat to Fact’Neil deGrasse-Tyson vs B.o.B has unexpectedly turned into one of the most entertaining rap beefs ever and the scientist has dropped the diss "Flat To Fact"