The Space Bar on My MacBook Pro Doesn’t Register Presses Properly

I recently had a problem with my Control key which I finally fixed by taking out the vacuum cleaner and sucking substantial debris1 out from under it. Today, the Space bar will not register keystrokes on its right half.

(A few minutes later.)

Seems to be working fine again, after thoroughly vacuuming it at max power.

I am not happy with this keyboard and I refuse to buy another MacBook until they fix this issue with a completely new design — silicon condoms membranes are not enough.

A speck of dust. ↩