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.