Reddit historians weigh in on casual sex

Want to read Reddit but don’t have the time? Our daily Reddit Digest highlights the most interesting or important discussions from around the social news site—every morning.

• Do subreddits created to avoid fluff ultimately fill up with, well, fluff? (/r/TheoryOfReddit)
   
• Dr. Hooshang Amirahmadi, candidate for President of Iran, hosts AMA. (r/IAMA)
   
• On the eve of the delayed season 4 premiere, Community writers host AMA. (/r/community)
   
• How common was casual sex throughout history? (/r/AskHistorians)
   
• Captain Kirk himself, William Shatner, beams down into r/startrek to say hello. (/r/startrek)
   
• How do blondes gradually become brunettes? (/r/askscience)
   
• The struggling USPS should follow the examples of FedEx and UPS. (/r/explainlikeimfive)

Picture of the day: The sun sets over Mars. (/r/SpacePorn)

Hottest subreddit: r/badmothers (NSFW) (1 day)