Mobile dating went mainstream about five years ago; by 2012 it was overtaking online dating.

“There have been two major transitions” in heterosexual mating “in the last four million years,” he says.

“The first was around 10,000 to 15,000 years ago, in the agricultural revolution, when we became less migratory and more settled,” leading to the establishment of marriage as a cultural contract.

But the lengthy, heartfelt e-mails exchanged by the main characters in (1998) seem positively Victorian in comparison to the messages sent on the average dating app today. ’ ” says Jennifer, 22, a senior at Indiana University Southeast, in New Albany.

“They’ll tell you, ‘Come over and sit on my face,’ ” says her friend, Ashley, 19.

Dan and Marty, also Alex’s roommates in a shiny high-rise apartment building near Wall Street, can vouch for that. “She works at—” He says the name of a high-end art auction house. And yet a lack of an intimate knowledge of his potential sex partners never presents him with an obstacle to physical intimacy, Alex says.

In fact, they can remember whom Alex has slept with in the past week more readily than he can.“Brittany, Morgan, Amber,” Marty says, counting on his fingers. Alex, his friends agree, is a Tinder King, a young man of such deft “text game”—“That’s the ability to actually convince someone to do something over text,” Marty explains—that he is able to entice young women into his bed on the basis of a few text exchanges, while letting them know up front he is not interested in having a relationship.“How does he ”But Marty, who prefers Hinge to Tinder (“Hinge is my thing”), is no slouch at “racking up girls.” He says he’s slept with 30 to 40 women in the last year: “I sort of play that I could be a boyfriend kind of guy,” in order to win them over, “but then they start wanting me to more …

“It is unprecedented from an evolutionary standpoint.” As soon as people could go online they were using it as a way to find partners to date and have sex with.

In the 90s it was Craigslist and AOL chat rooms, then and

and I just don’t.”“Dude, that’s not cool,” Alex chides in his warm way.

“I always make a point of disclosing I’m not looking for anything serious.

Old Saxon cuman, Old High German queman, coman, Old Norse koma, Gothic qiman; akin to Latin venīre to come, Greek baínein to go, Skt gácchati (he) goes]2. When you are talking about movement away from the place where you are, you use go, not 'come'.