Where it gets difficult to answer the very real internal almost contemplative question of 'am I solving a hard problem?' is when one looks at the history of flu

Where it gets difficult to answer the very real internal almost contemplative question of 'am I solving a hard problem?' is when one looks at the history of fluffy rhetoric used by companies solving seemingly easy problems, making it impossible to convince them or their supporters they aren't solving something hard. For example, a website with photo sharing and a forum like feature called a newsfeed claims to be connecting everyone. Can't fault them for having audacious goals, I guess, but then it makes it harder to know how to approach one's own hard problems. What's the MVP for a product that attacks world hunger, cancer, or energy scarcity, for example?