"When does a bird SING?"
When it is the only play left. When it is the only advantage left on the table.
"When does a bird SING?"
When it is the only play left. When it is the only advantage left on the table.
Possible he misspoke… or… he was alluding to tech like this:
https://www.dailymail.co.uk/sciencetech/article-3664723/US-Navy-developing-supersonic-submarine-cut-ocean-speed-sound-using-bubble.html