What are the pros for using extension-less urls?

@domenico.weimann 

1. Improved aesthetics: Extensionless URLs look cleaner and more modern.
2. Better SEO: Search engines may consider the keywords in the URL more effectively without the extension, potentially leading to improved search engine optimization (SEO) ranking.
3. Easier to remember: Without the file extension, URLs can be easier to remember and share.
4. Platform independence: URLs without file extensions are not tied to a specific platform or technology, allowing for greater flexibility in the future.
5. Better security: Removing file extensions can make it more difficult for attackers to determine the underlying technology in use, improving security.
6. Better caching: Without a file extension, caching becomes easier for web servers, potentially leading to faster page load times.