Questions with the keyword 'collapse'

• Are there physical phenomena, such as black holes or wave function collapse, which irrevocably destroy information by 12345dan to Chris, Dave, David, Jack Comments: (No comments so far )
• What is a wormhole? Do they exist independently (like I have heard that black holes lead to wormholes)? A black hole by sanban to Chris, Dave, David, Jack Comments: (No comments so far )