I've just returned from a brief 4-day vacation to find my mind in shambles. This always tends to happen -- I keep so many small threads of ideas and plans and micro-projects going on a regular basis that brief inattention turns the whole thing into a useless knot.
When in this state I find my mind begins to wander and reach out like hundreds of tentacles, grasping for any interesting avenue to do something. Should I take a university course? Build a DIY virtual pet with a Raspberry Pi? Work on designing that board game I always meant to build? So many new threads to begin! Of course, those old ones are hopelessly entagled and must be abandoned.
And so the cycle of the chronically occupied continues.
On my list of interesting roads I'd like to stroll down is the video series from 10 Minute Physics, by one Matthias Müller. According to the HackerNews thread I found the link on he's a very smart guy who developed some useful computer physics concepts which I'm very interested to learn about.
The tutorials are each done in a single HTML file which is handy. The first few videos are fairly basic implementations of bouncing balls, but it looks like it gets pretty meaty 6-7 videos in!