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.