Writing a FFT implementation for Java, in real-time

Just for something a bit different this morning I had an idea to do a record of developing software from the point of view of a "live blog". I was somewhat inspired by a recent video I saw of Media Molecules where they were editing shader routines for their outstandingly impressive new game "Dreams" on a live video stream.

Obviously I didn't quite do that but I did have a hypothesis to test and ended up with a working implementation to test that hypothesis, and recorded the details of the ups and downs as I went.

Did I get a positive or negative answer to my question?

To get the answer to that question and to get an insight into the daily life of one cranky developer, go have a read yourself.