My thoughts while reading the post exactly. Read Reece's Lean Startup, and he gives specific examples on how to cheaply test the waters. Reducing all that to

My thoughts while reading the post exactly. Read Reece's Lean Startup, and he gives specific examples on how to cheaply test the waters. Reducing all that to a landing page harvesting emails is completely the opposite of what Lean Startup proposes. Lean Startup is about measuring everything, and only doing what takes your idea forward. Anything else is wastage. If you need to measure potential uptake in a target market that won't find your landing page, then creating a landing page is wasting your time.