His four no-trump was saying that he had some extra values but no control in clubs.
Again, each node except the last will contain one extra value.
He had extra values, four clubs and shortage in his partner's suit.
Even though the 'rule' says to prefer the major, the last thing you need is for partner to take another bid with extra values.
You are going to have to take active steps to create that extra value for yourself.
"These companies are always looking for any little edge that can give them some kind of extra value," he said.
There was always some extra value in robots that were designed by their owners.
"People are awfully resistant to a price increase without some extra value."
At this point, I don't think that extra value has been made clear, which is a big mistake by his supporters.
If that doubled you could use the extra value to buy more stock.