Reverse engineer. Blogger.

Me, in December of last year:

Now they need to take a queue from Instagram (and many other modern mobile apps) and start uploading the photo immediately, rather than waiting for the user to click “done”, so that it seemingly uploads instantly.

Flickr blog, yesterday:

Uploads from the Flickr app are much faster. We did some magic to optimize uploads, but also start uploading in the background while you think about the photo’s title or where you want to share it to.

It is less magic and more smoke and mirrors but a welcome change nonetheless.