Heck yeah it's true!
I am of course, talking about the things you have learned... or more specifically, the things that I have learned. I now have over 500 blog posts on my site, the majority of which are of a technical, exploratory nature. A lot of it get's retained, but not all of it. I find, that unless I use a newly learned skill on a regular basis, I lose the ability to recall it on command (ie. when I need it while programming). But even more than recalling it, I just forget I know it and hence, a particular trick might not pop to mind when it would be most useful.
To remedy this, I am testing out the idea of a daily "If You Don't Use It, You Lose It" email that will send me 5 random blogs entries from my own database every day. I figure, most of the time, I will glance at it and trash it. But I figure, every now and then, I am sure I will come across a blog entry and be like "Oh crap! I totally forgot about that!"
So anyway, this is designed to remind ME what the heck I wrote. However, if anyone else is interested in using it, feel free. I have an ultra simple subscribe / unsubscribe form here:
We'll see if it helps me remember stuff on a permanent basis. It might... of coures, it might end up being totally useless.