Conversation so far:
where did the saying on the bubble come from
On the bubble is an American phrase from the 1970s with usage beginning for the Indianpolis 500 race.
how is the prhase on the bubble used today
The idiom on the bubble has spread to describing critical success/failure points in other sports and other events in society.
may i have an example of the phrase on the bubble
“I was on the bubble to make it out of the regional so I just said whatever and was just going to go for it,” Reynolds noted.

Question: is there any other usage
Self-contained rewrite: Is there any other usage of the phrase on the bubble?