Please help me understand the difference between 'overlap sth' and 'overlap with something'. I found the following example:
If two activities or periods of time overlap, the second one starts before the first one has finished: 1. example: The second phase of development overlaps the first.
2. example: My vacation overlaps with yours.
Am I right thinking that according to the two sentences above 'the first activity overlaps with the second one' and 'the second one overlaps the first one'? In other words: is it clear from the 2. example that my vacation starts earlier than yours?
Thank you in advance for your help!
If one thing overlaps another, that's what it does. If our vacations overlap, they overlap. I see no need or justification for 'with' (which doesn't mean that nobody ever uses it).