I would really like to see devices which can accurately measure our hunger and also calculate the calories and nutrients in a substance.
If we have a device similar to a weighing machine which can display all the essential nutrients, calories, amount of fat, protein, carbs, fiber, sodium,....... etc then it really is a boon for all of us.
it will be so good; like put your apple on the device and there you go you can see its nutritional value. vow, amazing!!!
I hope someone creates this device soon and then it will be a new invention benefiting human race.
Now about the hunger measurement; I don't think its an impossible one but what I am looking for is a tool similar to our thermometer or a BP checking machine which can show our hunger reading;
lets say, keep the device's tip in your mouth for a minute and then the reading should indicate all this:
1) the amount of calories(min, max, avg) your body currently needs so as to stop that "hunger" bug.
2) the amount of fat, protein, carbs etc it needs for that