>>4
Sure. I choose the context of `writing their names in posts on /prog/' with QWERTY layout.
The performance is just about equal. `vector' has six letters, 'bitmap' has six letters. Furthermore, of those six letters, the first and third pairs are typed with the same finger for each. `vector' loses a bit of efficiency when moving from `c' to `t' with the same finger, but time trials suggest that the coordination required to line up the exact interleaving of hands for typing `bitmap' compensates for this.