'Will [     ] allow us to better understand each other and thus make war undesirable?' is one that pops up whenever we invent a new communication medium.

"Simple Answers", by Randall Munroe, licensed under Creative Commons Attribution-NonCommercial 2.5 License

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'Will [ ] allow us to better understand each other and thus make war undesirable?' is one that pops up whenever we invent a new communication medium.