Those things have other sides to them; "make something people want" means that you probably can't make the thing you want. If you want to make a text editor and

Those things have other sides to them; "make something people want" means that you probably can't make the thing you want. If you want to make a text editor and people don't want that, you can either please yourself (fun) or do something you don't really want to do (useful to others). It's much rarer that the two things overlap, but I guess more powerful when they do. "talk to your users" brings "you can't make the decisions" with it. Tech people love to talk about "lusers" and deride anyone who thinks differently as dumb sheep. If your users want the Office Ribbon and you hate it, are you going to build it? If your users hate the command line options are you going to change it or sneer at them to go back to babyworld and stop wasting your time? "keep typing and don't die" means keep working when it gets hard, boring, goes wrong, feels unrewarding, competitors show up, people quit, your market dissipates, people are jeering at you and telling you it won't work, when your money is running low or your debtors are banging on the door, or you need to do a pile of admin paperwork, when you doubt yourself. "keep going" might be boring, that doesn't mean it's easy. (cough) selection bias, lots of people want things for free, lots of people don't know what they want and just want a chat, lots of people grind for a long time and still get nowhere - consider how many other investors there have been over the past 70 years who tried as hard as Buffet and didn't become him because they didn't read the same things, come to the same conclusions, think the same way, have the same patience, or hit the same companies to invest in at good times, or were forced out for other reasons.