#16 ... when aliens finally land, they will use it to travel the planet

#20 It has two holes in it.

Almost everything here should last forever.

#12 - no surprise - it’s made of iron and there are no moving parts. No reason it won’t last 500 years.

#16 that's 150 miles per day, every day, no weekends or holidays, at least

#20 Most acoustic guitars have a literal hole in them.