Plato's Cave, Part II: Who's Creating the Shadows?

Think about the last time you had an opinion about something,
a decision to buy certain things, or even something you think you'd like to do. Was it really your idea? Or had the ground been prepared for you long before you started thinking?
At our last meetup on Plato's Cave, someone asked the question that stuck with everyone: who are the ones projecting the shadows today? That's exactly what this one is about.
I'll start with a short presentation on some of the groups that have a strong influence over what we see, hear, and believe. Then some real examples with photos and videos of how it works in practice. After that, the floor is open.
The space is small, so if you can no longer make it, please update your RSVP so someone else can join.