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The author isn't the first person to think of this, most notably Steven Hawking tried something similar http://www.huffingtonpost.co.uk/2012/07/02/stephen-hawk

• kbenson 12y ago
  I think the main difference is that this paper outlines a method to possibly find time travelers that weren't necessarily intending to publicize their existence, while Hawking's method presupposed that the time travelers a) Had access to that specific time b) could get to his specific location c) did not mind it being known they were time travelers d) viewed his party was worthy of their attention.