Revenue is what ultimately matters.

Without revenue, you don't have a business.

When you think you have a business:

You get someone to positively respond to your idea.

When you might actually have a business developing:

You get strangers to actually try it.

When you know you have a business:

You get lots of strangers to actually pay for it.

Revenue is what ultimately matters.

Without revenue you don’t have a business — at best you have an interesting idea or hobby.

Revenue is the goal — it’s the measuring stick — it’s the lifeblood of a business.

You should be obsessively chasing it from day one (and every day after).