New walking route

Ethics teaching day! We started a new topic today (having finished “stealing” last week): Jumping to conclusions. It’s actually about applying a bit of formal logic to statements to transform them into other statements, and how that changes the truth value. For example, one of the statements we discussed today is “All carrots are vegetables”, which is true. If you reverse the statement, “All vegetables are carrots”, you get a false statement.

Then we moved to trickier examples, like “All Persian cats are fluffy” – which you can’t reverse in the same way as easily: “All fluffy are Persian cats”. You need to add a noun to the second part: “All Persian cats are fluffy animals” → “All fluffy animals are Persian cats”. Again, true becomes false. Then “All birds have wings”, which needs to be modified to “All birds are animals with wings” → “All animals with wings are birds”. Again, true becomes false.

Next week we move on to examples where the truth value doesn’t change when you reverse the sentence. The goal of the topic is really to get the kids thinking about the rules of logic rather than to teach them rote rules, so that they can avoid jumping to incorrect conclusions.

On the way home I walked a new route which I haven’t explored before, through a local bush park. This is a park that straddles a creek, and consists of uncleared eucalyptus forest. I took some photos on the walk:

Lane Cove track

Gore Creek

It’s nice having relatively untouched bushland so close to home. There are several areas like this within walking distance of my home. The full walk to Ethics and home via the bush park was over 9 kilometres, and I climbed 176 metres of elevation. It’s a very hilly area around here.

Speaking of which, I’ve been keeping track of everywhere I walk using the Fog of World app for a few months. Here’s my current map showing everywhere I’ve walked in that time:

Fog of World map

New content today:

Bento box

Today was a bit of a lazy day, work-wise. I actually spent most of my time at home refactoring code, which didn’t achieve anything tangible beyond making it easier to add on more stuff later.

I also spent a lot of time out. I arranged to meet a friend for lunch at a Japanese place near the station two stops away from where I live. I could have caught the train, but I decided to walk to get a bit of exercise.

Now let me tell you about the area where I live. It ain’t flat. Not by a long shot. There are hills everywhere. My tracking app (I use Strava, if you want to follow my profile) tells me the walk there by the most direct route was 3.72 km, with an elevation gain of 103 metres. (I ended up only 29 m higher than I began, so I also went downhill 74 m.) The restaurant does bento boxes, and I had one with some sushi, a bowl of udon soup, and something I’ve never seen before: fish katsu! It was good.

For the walk home, I took a longer route, covering 5.55 km, with an elevation gain of 72 m. Later in the afternoon I also took Scully for a walk and play in the park. The weather’s turned windy here, but it wasn’t very cold – the forecasters say tomorrow we’ll get a blast of colder air. Anyway, here’s Scully, posing after fetching her ball in the dog park.

Chasing the ball in late winter sunshine