Seeing 16 concerts in a single day - possible?

BBC's journalist had a challenge - to see 16 gigs in just 12 hours. He tried it at Brighton's Great Escape Festival, which hosts more than 400 bands in two dozen venues over three days, and - succeeded! Most of the 16 bands he saw (in 11 hours) are newcomers - "no-one was a total disaster, which makes it a little sad to think how hard it is for under-the-radar artists to sustain a career in the industry. I've learned that guitar music isn't creatively dead, that live music certainly isn't dead".