I don't understand this either. We've had the ability to transfer single files over a local network basically forever with netcat http://jvns.ca/blog/2013/10/01

I don't understand this either. We've had the ability to transfer single files over a local network basically forever with netcat http://jvns.ca/blog/2013/10/01/day-2-netcat-fun/ http://jvns.ca/blog/2013/10/01/day-2-netcat-fun/. This just uses TCP and is really really simple. I use it all the time if I need to transfer a video or something. the problem with this (even though the basic capabilities are there!!!) is that netcat isn't super user-friendly so people don't use it. And it's not possible to do easily on a mobile device. So why hasn't someone built a widely-used user-friendly application that lets you send files over local networks using TCP? I don't know. I don't think it's because it's too technically challenging though.