But Yes you should be able to profit if being active and efficient on curation, At the moment I make around 8-9% on HP curation. My bet is that in 5 years inflation will be lower and your stake should grow faster by it self. I am working on a hive projection calculator at https://hivekpi.com/ still a lot I can improve but you can use it to estimate the compound interest on HP if you don't sell those rewards of course.