Humans are weird right? We have weird diets, we don’t know how to let the environment kill us, and we believe the oddest things. Like a day can be unlucky because of a number, or saying something makes it more likely to happen, or certain things bring bad luck. I just don’t see some of these things passing as we go into space.
Alien: Human friend, why have you locked yourself in your room?
Human: Because it’s Friday the 13th.
Alien: What does that have to do with anything?
Human: Bad luck, something always happens. I’m just going to sleep, see you tomorrow.
Alien: I… okay? *walks away perturbed and confused*
Alien: Human friend, have you made contact with your, ah, “Parents” recently?
Human: Shhhhh, don’t say it.
Alien: Say… what?
Human: Nothing, just… nothing.
Alien: … Do you mean, refer to your “pa-”
Human: DON’T MENTION THEM!!
Alien: But… why?
Human: They’ll call and then I have to deal with them and explain why I ran away to another space ship.
The Fibonacci sequence can help you quickly convert between miles and kilometers
The Fibonacci sequence is a series of numbers where every new number is the sum of the two previous ones in the series.
1, 1, 2, 3, 5, 8, 13, 21, etc. The next number would be 13 + 21 = 34.
Here’s the thing: 5 mi = 8 km. 8 mi = 13 km. 13 mi = 21 km, and so on.
Edit: You can also do this with multiples of these numbers (e.g. 5*10 = 8*10, 50 mi = 80 km). If you’ve got an odd number that doesn’t fit in the sequence, you can also just round to the nearest Fibonacci number and compensate for this in the answer. E.g. 70 mi ≈ 80 mi. 80 mi = 130 km. Subtract a small value like 15 km to compensate for the rounding, and the end result is 115 km.
This works because the Fibonacci sequence increases following the golden ratio (1:1.618). The ratio between miles and km is 1:1.609, or very, very close to the golden ratio. Hence, the Fibonacci sequence provides very good approximations when converting between km and miles.