The most anachronistic thing in Before Sunrise (1995) isn't Julie Delphy and Ethan Hawke browsing vinyl in a Vienna record store, but the fact that they connected in the first place.
Nineteen years ago was simpler times. People apparently read books on trains, struck up conversations with strangers, walked the streets of a city for hours on end engrossed in conversation without the distraction of twitter, the need to consult G-Maps or the desire to share their stories with their wider social networks.
A glance around a bus, train or airplane of 2014 shows the implausibility of the Hawke-Delphy connection occurring today. Today he'd be editing his trip movie on his ipad. She'd be tippytappying away on a macbook. They're never going to catch each others eye, let alone strike up a conversation.
Maybe someone somewhere is making a romantic movie where Tinder is the device that connects unlikely lovers. And twenty years from now someone can watch that movie, raise an eyebrow and say "pfffft - could never happen like that today." And so it goes.