What about a child who used to be interested in reptiles but is now interested in programming? I get frustrated when Google starts acting "smart" and changing queries or hiding results. I've started to use Bing image search because I'd like more than 20 results, the way Google used to be. If they start acting like that even more, I'll use them even less!
Google's model is the only viable one long term. With growing amount of information, the only way to find you something useful without making you enter a growing amount of terms is to maintain a context of what you are interested in.
No child will be confused if they look up a programming language that they already know have the exact same name as reptile and get reptile first.
