Evil?

exponential_by_accident.rb

# Evil Exponential Backoff
#
#  fog has this wait_for method that calls #to_f on its interval each iteration
# to determine how to sleep. https://github.com/fog/fog/blob/master/lib/fog/core/wait_for.rb
#
# This object will generate the 2**n series. Each time you call to_f, it'll give you another one.
# 

iter = (0..(1/0.0)).each
def iter.to_f
 2**self.next
end

p iter.to_f
# => 1
p iter.to_f
# => 2
p iter.to_f
# => 4