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.