There are sailed powered logistics ships! Here’s a grain ship that just launched. There are also companies that produce inflatable or deployable sails to reduce fuel consumption in favorable winds.

Ultimately there will be a need for chemical energy or similarly dense energy to move a ship. The wind doesn’t always blow, and when it does it won’t always be in the direction you want. Nuclear is certainly an interesting option.

A friend of mine explained why it’s important to his kids: they can’t chat with a group of their friends.

Why? Because parents don’t want to install WhatsApp or other group chats due to legitimate concerns about scammers, pedophiles, and other child predators. SMS chat fills that gap, but it breaks horribly for groups bigger than 10 people. Hence if some kid is on Android, they break their chat. Given the penetration of Apple devices, it’s the kids with Android who are considered at-fault. “Just get an iPhone!”

Welcome to anticompetitive practices targeted at your children.