Young and McKay in “Unfinished Business”

We're not gonna be able to keep up this charade forever. How long is this gonna take?

I gave you my best guess in the briefing.

You also said you'd re-assess once we got here.

Well, the facility's already drawing power from the naqahdria core, which speeds things up considerably. On the other hand, this is more or less 1940s technology, which can slow things down. (gestures towards the Stargate) Then again, there's the "they don't build things like they used to" factor.

One hour or two, McKay, which is it?

If we end this conversation right now, I can still manage the former.

(annoyed) Sheppard's right. (walks away)

About what?