I mean, 5 minutes ago I didn't know what an MTT assay was. It was what I had in mind and what I was more or less searching for, but had no specific idea of how it worked and what it was.
Now I know what it is and I know where to find specific information about the methodology if I need to.
And I even had the time to write this post...
Normally, I'd have to find a review about these methodologies and skim through it to find the one I was interested in.