Dumbest fibonacci ever

fib.rb

#!/usr/bin/env ruby

def fib0(a)
  0.upto(a.size-1) { |i| a[i] += 1 }
end

def fib1(a)
  fib0(a)
end

def fib2(a)
  fib1(a)
  fib0(a)
end

def fib3(a)
  fib2(a)
  fib1(a)
end

def fib4(a)
  fib3(a)
  fib2(a)
end

def fib5(a)
  fib4(a)
  fib3(a)
end

def fib6(a)
  fib5(a)
  fib4(a)
end

def fib7(a)
  fib6(a)
  fib5(a)
end

def fib8(a)
  fib7(a)
  fib6(a)
end

def fib9(a)
  fib8(a)
  fib7(a)
end

def fib10(a)
  fib9(a)
  fib8(a)
end

def fib11(a)
  fib10(a)
  fib9(a)
end

def fib12(a)
  fib11(a)
  fib10(a)
end

def fib13(a)
  fib12(a)
  fib11(a)
end

def fib14(a)
  fib13(a)
  fib12(a)
end

def fib15(a)
  fib14(a)
  fib13(a)
end

def fib16(a)
  fib15(a)
  fib14(a)
end

def fib17(a)
  fib16(a)
  fib15(a)
end

def fib18(a)
  fib17(a)
  fib16(a)
end

def fib19(a)
  fib18(a)
  fib17(a)
end

def fib20(a)
  fib19(a)
  fib18(a)
end

def fib21(a)
  fib20(a)
  fib19(a)
end

def fib22(a)
  fib21(a)
  fib20(a)
end

def fib23(a)
  fib22(a)
  fib21(a)
end

def fib24(a)
  fib23(a)
  fib22(a)
end

def fib25(a)
  fib24(a)
  fib23(a)
end

def fib26(a)
  fib25(a)
  fib24(a)
end

def fib27(a)
  fib26(a)
  fib25(a)
end

def fib28(a)
  fib27(a)
  fib26(a)
end

def fib29(a)
  fib28(a)
  fib27(a)
end

def fib30(a)
  fib29(a)
  fib28(a)
end

def fib(n)
  a = [0] * 10000
  send("fib" + n.to_s, a)
  a.reduce(0, &:+) / a.size
end

n = ARGV.shift
puts fib(n)

This made me laugh 👍 🤣 I know it's written as an example for PR to rbspy but it's just great anyway.