Don’t fight culture (If people cook by stirring their stews, they’re not
going to use a solar oven, no matter what you do to market it. Make
them a better stove instead.)
This is my favorite. I think change is amazing, especially in places that could really use a little push, but thats what they need is a push. I think for most people, something that completely changes a way they do something is not so appealing. If you ease someone into something by changing a small part of something and not the wh***, they adapt to it, and open their minds to change a little easier. You don't need to show someone their heart with and ultrasound, to make them believe it's there, it will work yes, but let them hear it with a stethoscope and I bet you will get the same result.