Building a bridge!
You: We're building a bridge! It's going to be great! We've been thinking about it a bunch, and we're even starting work on it. We've got lots of great people. Let me tell you about why it's going to be great and very aesthetic. Me: Nice! Can you tell me a bit about the loads you're planning for the bridge to carry, and how they'll be supported? You: We'll work it out. We'll have great people. Great people are strong and make bridges that are strong and can carry mighty weights. Me: I'm asking about the bridge itself, not the people. How much weight will the bridge carry, and what materials will you use, and how will the loads be distributed to the pylons, and where will the pylons be embedded? If you don't think about these things and try to build a bridge anyway, it will just collapse. You: I don't get what you mean, you're being vague. Can you show a specific way that our bridge will collapse? Me: I can give an example sce