At least it does for web pages.
“Try holding your breath for as long as it takes your home page to load. If you are now dead, it took too long.”
- Art and the Zen of web sites
A decade ago, in the age of dial-up connections, page weight was everything. Images were compressed to within an inch of their lives and Netscape (R.I.P.) even had a special attribute for a lower resolution image to use as a placeholder while the proper image loaded. Then along came broadband and web developers got lazy.
