What if there is no field to talk about ? Most people cannot believe that some part of science are not as advanced as others. But there are good reasons, nobody

What if there is no field to talk about ? Most people cannot believe that some part of science are not as advanced as others. But there are good reasons, nobody care enough to throw enough money at tit. Look at obesity in the US, if someone cared about it, if would be fixed. Much more money was thrown at advancing internal combustion motors than improving diet of the average citizen of the USA.