The guy is going on a cruise ship, not 40 years in the wilderness. There will be ports of call. There will be shipments that meet the boat. If something breaks, he can get it fixed in Brazil as easily as he could Boston. Heck, a maintenance guy on the boat could likely do it. They will even have an electronics technician somewhere on that thing.
The boat will stay on Earth. It ain't going to Mars.
Take the Ibby.
The boat will stay on Earth. It ain't going to Mars.
Take the Ibby.