Questioning Google's motives re the push to HTTPS

"A former exec at one of Google's competitors explained what is possibly their real motive. Google doesn't want its competitors to write bots that scrape their search engine.

So why not just encrypt all access to google.com? I asked.

Because bits of Google code are embedded in other people's pages. Google Analytics, YouTube, maps. I immediately understood. The way HTTPS works, if any component of a page is not secure then all other accesses are not. "

A little help here, what stops me from writing a bot that can do https and get the info from the page?

Is there some sort of misunderstanding about why moving to HTTPS for everything here is a good thing? I find this post very confusing -- it isn't difficult to set up HTTPS for a blog, so it's unclear to me why people wouldn't.

Yes, some historic components of the web may struggle to move to HTTPS, but there's no problem in that, however we should be looking forward.