Critical mass and Point of no return

Critical mass noun - The minimum amount (of something) required to start or maintain a venture.

Point of no return and critical mass are semantically related. in crucial point topic. In some cases you can use "Point of no return" instead a noun phrase "Critical mass".

Point of no return noun - A line that when crossed permits of no return and typically results in irrevocable commitment.

Critical mass and point of no return are semantically related. You can use "Critical mass" instead a noun phrase "Point of no return".