The first mile of a user’s experience is the top of your funnel for new users and needs to be the most thought-out part of your product, not an after-though.

For any product with aggressive growth aspirations, I’d argue that 30%+ of your energy should always be allocated to the first mile of your product.

Even if your user experience for new users is performing well, don’t forget that new types of new users are the real source of growth.

Without constantly reconsidering your assumptions for what new users need, you’ll fail to accommodate the cohorts that bring your product mainstream.

— Scott Belski

https://medium.com/@scottbelsky/crafting-the-first-mile-of-product-7ed25e8f1027#.jye7zrbhk