Having listened to that sound clip, he definitely says "inside". But, just listening to his voice the man sounds kind of stupid. I think that it should be "insight", because inside doesn't make much sense, altough, i guess you could get away with saying it. SO basically he says

"Jack had no informtion to back back up his plan, he had no idea what space travel was about" he had no knowledge inside of the field of space travel. he basically just said let's go, without thinking about it too much