This thinker used an example of a writer who thinks man will become an ostrich to argue the importance of empirical verification. Oded Galor developed a ‘unified’ theory whose first regime is named for this thinker. An intellectual movement named for this thinker is opposed by ‘cornucopians’ such as Julian Simon, who made a wager about metal prices with a (15[1])member of that movement, Paul (*) Ehrlich. This thinker wrote that a great part of the Irish population should be “swept (-5[1])from the soil” (-5[1])in a letter to David Ricardo. This thinker advocated delaying marriage as a “preventive check” for a namesake “trap.” For 10 points, name this thinker whose “Essay on the Principle of Population” claimed that agricultural production would be outstripped by exponential (10[1])population (10[1])growth. ■END■