>>13817596

More useful to cite the primary source rather than these secondary ones that have no attribution:

https://www.ted.com/talks/bill_gates_innovating_to_zero

https://www.ted.com/talks/bill_gates_innovating_to_zero/transcript

Since Ted Talks blocks downloading of its videos, this Y/T one contains the pertinent excerpts:

https://www.youtube.com/watch?v=LmzeYYWntxw