bitcoin               
                                        
                                          
 bitcoin  is a  crypto coin,  crypto here 
 meaning "hidden", because  this money is 
  invisible, intangible (yet still real)! 
 this is a  symptom of it  only living on 
 the internet - in  fact, if you were  to 
 remove  a bitcoin from the mainframe, it 
     would immediately die and become     
                worthless.                
                                          
 it  works like this:  if  you make  your 
 computer  create  a  lot  of  heat, it's 
 rewarded  with  bitcoin,  as a token  of 
       gratitude from time's arrow.       
                                          
 then  every other computer has to sign a 
 document  stating that  those coins  are 
 actually  yours. you can then  send them 
 to  others,  generating a  new  document 
           for everyone to sign.          
                                          
 and because  you're  knee deep now,  you 
 have  to  sign   a  lot   of   documents 
 yourself,  and keep track  of who signed 
 what,  and look  for forged  signatures, 
 and  probably forge  a  few  yourself... 
                                          
 also,  in  the  end   it  doesn't  work.