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.