“Ireland never lacked the capacity to feed its people. During the entire 'great famine,' the island continued to produce massive amounts of beef and grain. The Irish just couldn't afford to buy any of it due to the enforcement of rack-renting, high taxation, and suppression of manufactures.”

American aerospace engineer and author

Robert Zubrin is an American aerospace engineer, author, and advocate for human exploration of Mars. He is known for arguing that space will shape future military and political power, and for making the case for a stronger American role in space. His writing often turns on Mars exploration and on the strategic importance of space. He has also argued that control of space will matter in future conflict, and that peace on Earth depends on preparing for war beyond it.