What is the next number?

Question

What is the next number?
8, 4, 2, 2, 6, ?

Answer 1

I see a decreasing sequence of even numbers

8, 4, 2

then it starts over and goes up 

has the number between the 4 and 8 (a 6)

So I would guess a 10 might be next.

8, 4, 2, 2, 6, 10

 

Another idea might be that 8 (÷2) 4 (÷2) 2 ,  2 (x3) 6 (x3) 18

for 8 4 2 2 6 18

 

But who knows what was in the mind of the person who wrote down the sequence.
Unless there is a clear arithmetic relationship, I always find this king of thing more guessing than anything.