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Perimeter Institute is the personal blog site of me, David Harper, a Bristol-based photographer, web designer and business copywriter. I ride motorcycles. I'm inclined to write and make videos in my spare time; mostly, it seems, about motorcycles. So this is a place to put those things in the public domain. If you're entertained by them, well, that's good and I'll be happy about it.

All written, photographic and video material featured on this site is original work produced by me. The only exceptions to this are a couple of posts where I've had to use a library stock image (for example, the buzzard that illustrates one of my posts). One of the objectives in creating this site was to bring together a portfolio of work that I'd previously published elsewhere, so some posts have featured on other sites that I contribute to.

Origin story: Why Perimeter Institute? A few years back I was watching a documentary, I've long since forgotten what it was, but it was about some kind of fringe science. It featured someone who was from 'The Perimeter Institute'. So, as far as I know, it is actually a real thing, a proper institute. I recall thinking at the time that it was possibly the most inspired name for an organisation I'd ever heard, and it stayed with me. But they don't appear to have ever registered it as a domain name. So I did. If The Perimeter Institute is out there somewhere - and it would be appropriate if it was out there - then I should state that I am in no way affiliated with them, and they certainly can't be held responsible for any of the stuff I'll be posting on here. I must congratulate them on coming up with a very cool name though.

Update: I've since discovered that the Perimeter Institute for Theoretical Physics is very much out there, in fact here: https://www.perimeterinstitute.ca/. Deep. If that's who you were looking for when you arrived here then my apologies for diverting you.