Most solutions to real-world problems offer tons of deliciously complicated CS issues to chew through.
Just find problems to solve that are interesting to you, hype is irrelevant in finding a worthwhile thing to do (i.e. that a thing is hyped does not make it worse than something else - it does not make it better, either, though).
Just find problems to solve that are interesting to you, hype is irrelevant in finding a worthwhile thing to do (i.e. that a thing is hyped does not make it worse than something else - it does not make it better, either, though).