Depends. You’ll need to check the package.

Only a few of them are 100% biodegradable, with bristles made from animal hair, vegetable oil or straw.

Most of the bamboo toothbrushes have bristles made from recycled nylon, so those aren’t 100 biodegradable, but they are still produced a lot more environmentally friendly than plastic toothbrushes.

Bizarre fact: Physics work as usual.

I think Helsinki once tried elevated walkways in an entire neighborhood unsuccessfully. People couldn’t (be bothered to) find their way when limited to walkways. I can’t find anything on the project, but it showed how design is extremely important. In a lot of ways, I find it more logical to keep the pedestrian zones open (remember r/desirepath?) and then route the vehicles around, over and under.

Anyway if you’ve ever been to a city with elevated walkways or any other kind of multiple levels, you’ll probably find that people stick to whatever is considered ground level for pedestrian travel. Tokyo has plenty of those places and even with escalators, it just sucks to change level.

I’ve however seen a functional walkway in Osaka where most pedestrian traffic would be either above or under ground level, but I’m not really sure if it was because the ground level was under construction and wasn’t accessible by foot at the time.

I think it’d be better with an income limit if that’s possible to check.

Where I live, the only involuntarily homeless people are generally those who experience longer than 2 year medical or psychological issues.

I think the issue is that if the government offered tiny houses or apartments for anyone that everyone would want one.

The value of “free shit” is somehow larger than the value of owning a large mansion or something.

Very good points.

Particularly that it only makes sense to generate hydrogen when electricity is in surplus - because otherwise we might as well use the electricity directly to offset use of other fuels.

I don’t mind hydrogen as such a storage even if it’s inefficient, but I do have 3 more reasons to dislike hydrogen:

1. It’s going to be used to whitewash fossil fuels. Look at all the colours for hydrogen. These will be mixed up because it’s impossible to tell from the end product. Hell, we can’t even transport polluted dirt without someone suddenly classifying it as “clean”. It will be completely impossible to keep track of dirty hydrogen through the supply chain.

2. It will keep users dependent on expensive physical fuel distribution that serves no purpose but to transport the fuel while keeping the supplier in charge of the price.

3. Refueling of any kind is a massive waste of time. Sure, it takes longer to charge batteries, but at least the users don’t have to watch it happening. It makes no sense for grid connected trains of all things.

The latest are from 2013.

It’s great though if you have plans on restoring a 98 Pontiac Sunfire.