Excellence in planning will be correctness in regard to the means (to sympheron) to the end (to telos), of which (ov) practical reason is the true apprehension (hypothesis). ― Aristotle says in Nicomachean Ethics.
If we hear anyone, in any domain, with any tool to sell saying, we don't need to plan, everyone needs to be reminded that planning is the basis of all success and it's been known since Aristotle's time