This is how I spend most of my time. If you want to do research, you have to be prepared to be disappointed on regular basis. The state-of-the-art usually is what it is for good reasons. Many of your ideas won't work, or won't work as well as you hope. Research isn't like in the movies, where some savant improves an entire field just by having a quick glance over the problem. —
Marc Claesen yesterday