Even breaking down further by maths:

(extract from bitcointalk forum OP - franky1)

**the math is simple**

at current average 50 exahash mining stats (50000000 terahash) thats 3571428 asics(14 tera each)

working out the cost per coin can be done

hardware

even at their second hand sell off of $450/unit=$1,607,142,857.14

which if running for a year before unit replacement = $2452.90 hardware cost per btc(x/26/2016/12.5)

electric

571428*$0.08=$285714.24

$285714.24 an hour = $3819.99 a btc (*24/365 then /26/2016/12.5)

hardware and electric =$6272.89

electric= 0.06cents per kwh =(0.08cents for a ~1.33 kwh equiv)

asic hardware unit=$450

asic hardware hashrate 14 tera hash

asic hardware electric =~1.3kwatt/h

so yeah, all the basics boils down to simple maths.

In fact, I think the whole universe is nothing but numbers and maths (mass of a planet, pull of gravity, blackholes, speed of light, etc. everything and anything can be broken down and calculate by maths)

Am I going nuts? Thinking of numbers all the time??