It takes time to create things.
It takes time for living things to mature and grow until they are ready for the world. We can give them great growing conditions to accelerate their growth, but we can’t grow a tree in a day, and a baby can’t develop properly in just a couple of months.
It takes time for us to engineer and construct things. It takes time to manufacture or acquire the components, and it takes time put the pieces together. We can accelerate the process somewhat by expediting, focusing our attention, and throwing more resources at the project, but there is a limit to amount of time we can save.
And it takes experience and wisdom to know how to accelerate any creation process, and to truly understand the limits, risks, and implications of our efforts. Sometimes rushing the process is of huge benefit, and sometimes it is a very bad idea.