> The bottleneck is still knowing what to build, not building. A lot of the value in our product is in decisions users don't even know we made for them. Domain expertise + tight feedback loop with users can't be replicated by an internal developer in an afternoon.

The cost of building is going decreasing every year. The barriers of entry will come down year after year.

So what remains is knowing what you build (= product) as you write and knowing how to get exposure (= marketing). Focus on these two not on building things.