matt hepburn described the program at a ted talk last year. >> hepburn: 20,000 doses in 60 days.we're talking about engineering antibodies that are so effective that you get near- immediate protection once they're administered, and you interrupt transmission in those communities. if you can interrupt it, then potentially you can head off the pandemic. >> crowe: when we first saw the grant call that was inviting people to respond-- ( laughs ) we thought it was ridiculous. ( laughs ) we were getting antibodies in six to 24 months, which we thought was pretty spectacular. and, and they put the call out for 60 days, and we just said, "that can't be done." >> hepburn: for us, at darpa, if the experts are laughing at you and saying it's impossible, you're in the right space. >> whitaker: so, are you actually sitting there with, you know, 60 days? set a-- set a stopwatch? >> hepburn: yes. we say, "here's your money. but then, here's the stopwatch. we're going to do a capability demonstration." jargon words, but what it means is, stopwatch and show us how fast you can go. >> whitaker: do