> You browse profiles of real people who are interested in the same topics

In face to face ... Most people want to conform to common and uncontroversial interests or they blow up.

Ideally what you say can be easily done by Reddit or FB or YouTube. Take for example, PBS Space Time. There is a community there or in reddit. There is intense discussion. If you think people would share calendars etc then that is a big ask. Maybe. Maynot be. There may be diversity accepting PBS Space Time persons and not accepting persons. That is the reason people sit infront of their own screens and type only about that. If they disagree then they can downvote and move on.

Face to face means safety, open acceptance etc.

BUT wish you all the best. It may work. People may share: https://www.reddit.com/r/quotes/comments/8605g9/people_just_...

Thank you for your very helpful comment - well-reasoned and pragmatic. I think (though this still needs to be validated, of course) that it takes time for people to find others with shared interests on the platforms you mentioned (Reddit, Facebook, or YouTube). Beyond simply finding such people, one also has to take the first step and initiate a conversation. Even when someone does that, they usually become part of a group rather than engaging in a one-to-one conversation.

For shy or introverted people, the likelihood of messaging someone directly with “Hi, I’m Marta-would you like to get to know each other?” is quite low. Essentially, what I am trying to do is help people who don’t have the time to spend on forums or platforms to organize their free time around meaningful, high-quality conversations. This can be especially valuable for introverts, for those who find it hard to make the first move in real life, or for people looking for connections around less common interests.

Thank you once again for your input - got a lot for myself from it!