I'm hoping that once we have widespread coding literacy (if that happens), we wont have to write our own twitter. Instead services like twitter will provide var

I'm hoping that once we have widespread coding literacy (if that happens), we wont have to write our own twitter. Instead services like twitter will provide various "extensibility points" where anyone would be able to inject their own code according to what they need. Sort of like Excel lets you do with macros, but friendlier to use and more pervasive.