Optimism bias is a tendency to believe that things will turn out well in spite of past evidence or circumstances.

It can be extremely helpful. It allows us to attempt things that many may deem impossible. It probably helps drive entrepreneurs even when everyone is doubting them. Optimists are often healthier and happier.

But it can also undermine us. We might overestimate our chances of success because of what we want to happen rather than what's likely to happen. We may feel pressure from others to give a rosier outlook — like when you might underestimate a timeline when speaking with your boss. We might want others to succeed, or they may be paying us money and be hoping for good news. We probably think we'll get more done next week. We probably think we'll be more disciplined than we will be. We might think that this time it'll be different, or that everyone can't be wrong. Or we may be just discounting evidence without realising it.

Related: Hofstadter's Law, survivorship bias, Kitty Hawk moment

Optimism bias

It's something I like to keep in mind after a big workout, particularly on the legs — get the weight off them!

Stand sit lie

I love this Norwegian concept of how the hardest part of a journey can be just getting out of the door.

So, sometimes as Seth Godin would say, the most important thing is just to start — start small, start now, step by step, day by day and you can give yourself the chance of making something amazing.

Got something you’ve been meaning to start? Maybe today’s the day?

This sketchplanation is my 104th in consecutive weeks — that’s 2 years of weekly sketches without missing one — and sketchplanation number 583 in total. And I can tell you that it didn’t start glamorously, and they weren’t high quality or even interesting, but I did start. Sketch by sketch. Week by week.

Would you do me one favour? Would you share sketchplanations with just one person? Maybe forward this one, or your favourite, or share this tweet or follow on Instagram. I really appreciate you spreading the word.

I’d like to give a massive thank you to my patrons who’ve been supporting me this year with a particular shout to Nick Hungerford, Iain Shaw, Christian Hunt, and Tony Hey. Find out more.

HT: once again to Chris Hey for introducing me to the doorstep mile

The doorstep mile

I assumed fun is all the same. Fun is fun. But then, when I first heard about Type I and Type II fun, I had to admit there was some validity in there being different types of fun.

Type 1 fun is like eating ice cream, or skiing with ski lifts to whisk you back up to the top — you love it while you’re doing it, and when you think back on it you remember how good it was. Straightforward— sounds like fun.

Type 2 fun, on the other hand, is the sort of enjoyment you get from something like running a marathon or climibing a mountain. You often have to admit that it wasn’t necessarily all fun at the time. In fact, it could have been quite hard and might have hurt a bit (like the swimrun event I did last weekend). But when you look back on it, you think of it as often more fun and fulfilling than the Type I fun.

Type 3 fun is usually type 1 or 2 fun that went wrong. Though it was supposed to be fun, things actually got a little hairy – like you got lost, or it got dark, and it got cold, or you had to be rescued — but…it sure makes a great story when you make it back.

HT: my brother shared this with me having learned it from his mountain guide doing classic Type II fun.

The fun scale

Swimrun is basically navigating from start to finish through water and over land carrying only the gear you need. What you start with you have to finish with. You will run in your wetsuit and swim in your running shoes. The world championship courses are run by Ötillö. Ötillö means island-to-island in Swedish after the original course created from a drunken bet.

A beautiful aspect of it is that it's a team sport, both run and swum in pairs. Many choose to tether together which dramatically on the swims and keeps you both close.

In 2016 I teamed up with Rob Bell and took part in Ötillö’s UK swimrun in the Isles of Scilly. The Scilly event was a swimrun paradise. Check out the course, and the amazing event photos. The place is gorgeous, go visit sometime. And get into swimrun it’s awesome!

Swimrun

Swim a mile in water 5C or less. The ice mile is hardcore. Respect for crazy, amazing people like Lewis Pugh. Or if you’re in London, check out The Swimmer.

Sketchplanations tagged with endurance