I'm not entirely sure how you mean. Would you care to elaborate your point?
Just to make it more clear, in case I wasn't, the 'common wisdom' as also perpetuated in the parent's statement is indeed about the faster boiling time. It's all over the internet too (and youtube).
The 'problem' with it is that it it is actually factually true. That water will definitely boil faster without salt added to it at the start. It can be calculated to the T if you know all the input parameters, like initial temperature, power output of your heating element, amount of water and salt. The fact remains that it's only by maybe milliseconds for common water and salt amounts used in cooking. So pedantically, whoever mentions it, is right, but it doesn't matter and is not how it's commonly referred to. It's more used to throw around your knowledge about cooking, giving 'tips' etc. I don't doubt that many of the other 'common wisdoms' of cookery are similarly unfounded if pedantically true. Not all of them probably.
Just to make it more clear, in case I wasn't, the 'common wisdom' as also perpetuated in the parent's statement is indeed about the faster boiling time. It's all over the internet too (and youtube).
The 'problem' with it is that it it is actually factually true. That water will definitely boil faster without salt added to it at the start. It can be calculated to the T if you know all the input parameters, like initial temperature, power output of your heating element, amount of water and salt. The fact remains that it's only by maybe milliseconds for common water and salt amounts used in cooking. So pedantically, whoever mentions it, is right, but it doesn't matter and is not how it's commonly referred to. It's more used to throw around your knowledge about cooking, giving 'tips' etc. I don't doubt that many of the other 'common wisdoms' of cookery are similarly unfounded if pedantically true. Not all of them probably.