Does this sound familiar? You’re slowly drifting off to sleep when you come up with a great line for the song or paper you’ve been working on all day. It’s such a great idea, in fact, that you just know you’ll remember it in the morning. Happy to have finally come up with the perfect line, you nod off, smiling and peaceful.
In the morning, of course, it’s gone. All that you remember is that there’s something you should remember.
Or you’re talking to a business associate on the phone, when you remember that tomorrow is your nephew’s/sister-in-law’s/best friend’s birthday and you need to stop and pick them up a card on your way home. Filing that thought away under “to do later” you finish your call, leave work, and drive home, all the time thinking “isn’t there something I was supposed to do today…?”
Ideas are cheap, memory is expensive
We humans are exceptionally good at thinking up stuff. Sit down for two minutes with a pad of paper and try to come up with all the things you can make out of an orange, and you’ll see – after the first couple easy ones, you’ll start thinking up all sorts of crazy stuff (somebody actually thought up the idea of sticking cloves in an orange and hanging it on a Christmas tree, after all).
But we’re not very good at remembering all those ideas. Psychologists say we can hold from 5 to 9 thoughts in our immediate memory at any given time, meaning that, on average, the last 7 things you’ve thought are all you get. Add #8 to the list, and something falls out.
Our long-term memory is much better, but the process of moving items from short-term to long-term memory is quite complex and isn’t really “on-demand” – as anyone who has struggled to master organic chemistry can attest.
So, we have lots and lots of ideas and only a limited memory to hold them in before we lose them.Read the full article here.