There is an abundance of valuable knowledge and information out there. The trouble is knowing where the good stuff is.
Publish courses made entirely out of other people’s content. Each course will have a read/listen/watch list with links to all the best content on the subject, arranged in the right order so you can go step by step until you finish the course and acquire the knowledge you wanted.
Today, most children already want to have an email account (or other messaging systems) before the providers allow them to (before they turn 13.) A method that allows them to start doing so at younger ages and also teaches them best practices might help.
The current system could be augmented with an option for younger kids, where every message first goes through their parent or guardian. At a younger age, the filtering by a parent would probably be less of a problem than when they are teenagers, especially if the service provider mandates it for younger ages. The parent could then see how the child is using the messaging system, block a message if it’s a problematic one, or let it be delivered if it’s ok. Then talk to the child to explain what was wrong with it, so they can learn how to use the system well and what to beware of.
Instead of using a net and going after the leaves and similar things that get in the pool.
A mechanical system that spreads a fine mesh on the bottom of the pool. Starting on one side this net stretches on the bottom of the pool, as close to the floor as possible, and stirs up the debris that is there. When the net reaches the other side, after a short waiting period, it is pulled back at a slightly higher elevation, the furthest end being pulled in first, trapping the debris on the way back and pulling it into a disposal container built into the system, behind the wall where it’s installed.
Private and small swimming pools are unattended many times, and that can be dangerous especially for little children.
When sensors indicate that the pool has not been used for a while, a net is automatically stretched across it so that anyone who might trip into it will be suspended unharmed above the water.
A view from a bridge- all around the world 🙂
Have webcams set up by volunteer representatives (in return for exposure online) all around the world, so anyone can see what’s going on any place where there are pedestrian bridges, the view, as well as get their pictures taken with the background view showing. The software detects when someone is looking into the webcam and smiling, and then it takes their photo and automatically publishes it on an online wall of photos like it from all over the world.