there are many products that are scalable and pass…
Keyword business there are many products that are scalable and pass all the engineering tasks and work extremely well as a prototype but then fail in the market. This happens because the engineers do not anticipate the behavior of the consumer. The consumer remove lazy, incompetent The behavior of humans will ultimately sink a product. One of the ways to avoid this is to imagine what's success would look like at scale applied to the entire population with there are varying situations over a long period of time period to accomplish this, you need to identify your non negotiables from the start. For example if you have teachers that you need to use to implement the program, do not use only the best teacher to test the program because when you use many teachers they will not all be the best.
— from Leadership & Business (Leadership/Business)
In the book
It is very hard to scale a person, so if your "chef" is indispensable, growth will fight you; if your idea or product or distribution network is the indispensable thing, you can scale. And remember that something unexpected is far more likely to happen at scale than in a prototype, because real human beings are lazier and stranger than any engineer's model, and the prototype that works can still fail in the world. If your business depends on people coming back, winning them once isn't enough — they have to actually use what you built and get enough value to return again and again. — Leadership & Business (Leadership/Business)