Making a keyboard fully water proof is tricky and often leads to subpar experiences. If you don't have a fan making everything else but the keyboard(and mousep

Making a keyboard fully water proof is tricky and often leads to subpar experiences. If you don't have a fan making everything else but the keyboard(and mousepad) water resistant is not hard, and with a bit more trickery about how the keyboard are connected you can get to everything but keyboard waterproof too. Issue is then you also need a easy replaceable keyboard and hand replacement keyboard out so that people can have them ready them "just in case". Which both doesn't seem in the interest of Apple if you look at their actions in recent years. I think currently the best chance for a new consumer laptop which is water proof and convenient to use would be a tablet which has no fan but still provides okay performance and then some "dock on" keyboard like e.g. in the style of the Microsoft Surface or similar. Then you could have a version where the keyboard is also water proof or a version where if it drops in water you replace the nicer to use keyboard with a new one etc.