[StavrosK]

But multiple people have been working full time on wc for decades! At least, if you believe the article.

[iainmerrick]

Decades yes, but who said “full time”?

[joosters]

I've been working full time on 'wc' for only the last five years, since being promoted from full time working on 'cat'.

Once I've wrung every last drop of performance out of wc, I can move on to the next largest limiting factor in GNU performance, 'tail' :-)

[StavrosK]

That's what "decades of man-hours" means.