This is exactly what the Lean Startup talks about. Granted, I feel like the post was targeting the topic of procrastination more so than anything else. By Sam's

This is exactly what the Lean Startup talks about. Granted, I feel like the post was targeting the topic of procrastination more so than anything else. By Sam's logic, brainstorming and analyzing your business's market would fall under the territory of "doing", while reading and writing on hacker news may not.