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.