The 80% figure is a consequence of not only the projected increase in population in emerging markets (#msg-48556414), but also increasing affluence in emerging markets (e.g. #msg-56407145), which will foster the adoption of Western lifestyles, (#msg-51490876). Improved detection will increase the number of diagnosed cancer cases, of course, but this is a relatively small part of the picture vis-à-vis the 80% figure mentioned in #msg-76761339.
“The efficient-market hypothesis may be the foremost piece of B.S. ever promulgated in any area of human knowledge!”