If you're going to talk in front of an audience it's fun to visualize how big that audience size looks. Like what does it actually look like when there are 150 people in a room? Here are some images of crowd sizes.
50 people will fill up a room pretty quick.
Speaking in front of this many people makes me nervous!
The average podcast has 150 listeners. This is what that many people look like.
An audience this size will fill up a small church or a lecture hall.
An audience this size will need a theater to fit them all in.
1,000 people needs an even bigger theater. It's a packed house!
At this point theaters are barely holding this many people. Going to have to take this outside soon. Don't forget to count people on upper balconies.
Ok we now need a stadium to hold an audience this big.
The O2 Arena in London can hold 20,000 people.
Waldo Stadium holds 30,000.
Aloha stadium holds 50k.
Notre Dame stadium holds 75k.
Michigan stadum holds 100k.
Texas Motor Speedway claims to be able to hold 180,000 people, but that includes the skybox seats high above too.