This is something I know a bit about, and the article is terrifyingly stupid. The more you look into the utter dependence of modern life as we know it on petroleum and natural gas (coal to a much lesser extent), the unbelievable amount of it that we burn, the rate of discovery of new supplies, and the rate of depletion of known supplies... it's very uncomfortable to imagine 70% of the planet's population suddenly dying off over a 5 year period in the next 50 years but it's entirely plausible.<p>The most sobering part is that given a deep enough interruption in humankind, it's possible we'd never recover since the hydrocarbon frontier is in ultradeep, clathrates, and shale and none of those would be possible without a bootstrapping from easier hydrocarbon sources (which have been long since exhausted)