Sadly, no. I never bookmark or save articles as I come across them. It's a pity, as I've been searching for one specific article which compared our energy use with the total solar energy absorption of the planet (iirc, we were using more than 50% of total input).

As for your question, I doubt that they would include an all-vegan world scenario, as it's considered unattainable, regardless of whether it would theoretically help. Technological advances are generally included, but with very conservative gain estimates.