(1)  How many customer/user group people do the scientists have on their design team?
(2)  How many members of the design team have lived in these places for more than 3 days?

These fancy/exotic designs will fail eventually.

In poor countries, anything of value, and any object that is virtually impossible to break, unbolt, or cut off, will be stolen and sold.

As well, anything that is more than simply mechanical, static, robust, and completely intuitive, will not work.

Microwave? Chemistry? Isn’t this is so mismatched?!!

For success, the scientists MUST meet the poor people in their own element, environment, and lifestyles.

I grew up in the poor and impoverished environs of India.  Half of India’s billion people, that exceeds all of the US population, defecate in the open. Will  this project meet their needs?

This all could be such a waste of good money.

Expected more careful scrutiny from Bill and Melinda Gates Foundation.