From this Register article, published recently, making the point about page bloat very eloquently:
The average web page is now roughly the same size as the full install image for the classic DOS game Doom, apparently. This is according to Ronan Cremin, a lead engineer with Afilias Technologies and dotMobi's representative for the W3C (World Wide Web Consortium). Cremin points to data from the HTTP Archive showing that, at 2.3MB, the average page is now the same size as the original DOS install of the id Software mega-hit.
The HTTP Archive report places the average web page at around 2,301KB. This is smaller than Doom's 2,393KB footprint, but only slightly. Most of the page bloat is due to images, which take up on average 1,463KB of data. Next is script code, which occupies 360KB, followed by video, averaging 200KB per page.
Cremin notes that the growing size of pages isn't exactly a good thing, and is an indication of how wasteful some sites have become in the era of prevalent broadband connections.
"Recall that Doom is a multi-level first person shooter that ships with an advanced 3D rendering engine and multiple levels, each comprised of maps, sprites and sound effects," he said. "By comparison, 2016's web struggles to deliver a page of web content in the same size. If that doesn't give you pause, you're missing something."
2.3MB, just for one web page? The average user has no clue about bytes, of course - witness the number of people tying themselves in knots because they were 'just trying to send that funny video' as an email attachment or whatever. To them, a 'thing' is a 'thing', whether it's a blob of plain text (1kb) or a video (100MB, say, 100,000x bigger in terms of bytes!)
But you, as a tech-savvy reader, probably can see the craziness of all this. How on earth can web designers be so wasteful in terms of page size?
The takeaway, of course, is that when you open a web page in Symbian Web, Opera Mobile, Internet Explorer or Microsoft Edge and the downloading and rendering takes (say) 20 seconds, the browser's actually doing very well. Effectively it's having to download the equivalent of the full Doom game for every single link you tap on!