> Do you have a cursory knowledge of all those fields?
You don't have a cursory knowledge of everything you use/own and believe it's alright?
Do you know you shouldn't cut your electric wire while having them plugged in?
Do you know you shouldn't put your finger under the knife while you are cutting carrots?
Do you know you shouldn't put metal into your microwave?
You do have cursory knowledge about the tools in your house. You give an absurd list of example in your comment, but theses aren't the tool in your house, they are completely different field that sure are required to give you the tools/food you have, but they aren't part of any of your tool-set required to live. I fully expect someone that use a fountains pens to know how to change its ink cartridge, just like I fully expect a plumber to know how to use a wrench safely and a web user to know how to safely navigate the web.
Sure the tools can be made safer and better, but that doesn't means to remove actual feature from it. You wouldn't make the wrench out of rubber because the metal is too hard and can hurt someone, you expect the wrench user to know it or to teach him if required.
You don't have a cursory knowledge of everything you use/own and believe it's alright?
Do you know you shouldn't cut your electric wire while having them plugged in?
Do you know you shouldn't put your finger under the knife while you are cutting carrots?
Do you know you shouldn't put metal into your microwave?
You do have cursory knowledge about the tools in your house. You give an absurd list of example in your comment, but theses aren't the tool in your house, they are completely different field that sure are required to give you the tools/food you have, but they aren't part of any of your tool-set required to live. I fully expect someone that use a fountains pens to know how to change its ink cartridge, just like I fully expect a plumber to know how to use a wrench safely and a web user to know how to safely navigate the web.
Sure the tools can be made safer and better, but that doesn't means to remove actual feature from it. You wouldn't make the wrench out of rubber because the metal is too hard and can hurt someone, you expect the wrench user to know it or to teach him if required.