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.