[[Book - Laws of UX - Using Psychology to Design Better Products and Service]] Tesler’s law, also known as the law of conservation of complexity, states that for any system there is a certain amount of complexity that cannot be reduced. Key Takeaways - All processes have a core of complexity that cannot be designed away and therefore must be assumed by either the system or the user. - Ensure as much as possible of the burden is lifted from users by dealing with inherent complexity during design and development. - Take care not to simplify interfaces to the point of abstraction. --- - There is some complexity that cannot be reduced any further. Origin : - Larry Tesler 1980s Example: 1. email. There are necessary complexity - include :TO: and :content 1. Complexity can be moved by app to populating To and Content (AI) - like Smart Compose in Gmail. 1. Check out in shopping site 1. Auto populate Shipping address 2. or by APPLE Pay 1. No need to enter more any information 1. Complexity shift to developers 1. Amazon Go - Check Out Free shopping experience. Just check out automatically no need to q up to pay ---- The complexity didn't go away but shifted from USER to DEVELOPERS. Not to take it too far. Iconography - Icons cannot be too abstract.