Definition from Wiktionary, the free dictionary
you never know
- Used to speculate about a slight possibility.
- 8 October 2010, Colin Jackons for BBC Sport, 'Magic can happen between Turner and Sharman'
- They are only running times in the 13.20s, but next year he could run 13.25 and you never know, he may end up running 13.1 quite easily
phrase used to speculate about a slim chance