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Why How What - The Blockchain

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In his presentation at Blockchain Vlaanderen, Sam Wouters explained why the Blockchain exists, how it works and what can be done with it.

Interested in learning more? Check out my website or book me as a speaker: http://samwouters.com/

Twitter: https://twitter.com/SDWouters
LinkedIn: https://www.linkedin.com/in/samwouters

Publicado en: Tecnología
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Why How What - The Blockchain

  1. 1. @sdwouters THE Blockchain WHY HOW WHAT
  2. 2. @sdwouters Into Bitcoin since 2013 Digital Transformation Consultant at Duval Union Consulting Sam Wouters
  3. 3. @sdwouters One of many disruptIVE PLAYERS
  4. 4. @sdwouters Who has heard of Bitcoin before today?
  5. 5. @sdwouters “bitcoin is digital money”
  6. 6. @sdwouters Positive image? Who has heard of Bitcoin before today?
  7. 7. @sdwouters Negative image?Positive image? Who has heard of Bitcoin before today?
  8. 8. @sdwouters Who fundamentally understands Bitcoin? Negative image?Positive image? Who has heard of Bitcoin before today?
  9. 9. @sdwouters Media that predicted the death of Bitcoin bitcoinobituaries.com
  10. 10. @sdwouters Who has heard of Bitcoin before today? Negative image?Positive image? Who owns bitcoins? Who fundamentally understands Bitcoin?
  11. 11. @sdwouters “We’re trying to make laws for 
 something we don’t understand”
  12. 12. @sdwouters Banks try to skip learning about Bitcoin
  13. 13. @sdwouters Nearly all of them are investing in Bitcoin’s technology, the Blockchain
  14. 14. @sdwouters WHY does the Blockchain 
 exist?
  15. 15. @sdwouters HOW does it work? WHY does the Blockchain 
 exist?
  16. 16. @sdwouters WHAT can we do with it? HOW does it work? WHY does the Blockchain 
 exist?
  17. 17. @sdwouters WHY does the Blockchain 
 exist?
  18. 18. @sdwouters How it began in 2008: a financial system
 without “trusted” third parties bitcoin.org/bitcoin.pdf
  19. 19. @sdwouters Banks built the most complex system in the world *Insert image of global financial system*
  20. 20. @sdwouters Why do bank transfers take days?
  21. 21. @sdwouters Why can’t we use microtransactions?
  22. 22. Financial innovation is held back by rules and regulations
  23. 23. But this is innovation!
  24. 24. @sdwouters Say that to the 40% unbanked adults worldwide…
  25. 25. And to the people who pay 5-20% money transfer fees!
  26. 26. Yet we can do this?
  27. 27. @sdwouters The Blockchain is about more than global payments
  28. 28. @sdwouters We have more debt than we can ever repay
  29. 29. @sdwouters Governments struggle to track expenses
  30. 30. @sdwouters We have unprecedented money printing research.stlouisfed.org/fred2/series/AMBSL
  31. 31. The money in your bank loses value Inflation Interest>
  32. 32. @sdwouters If Finance is so messed up why don’t we fix it?
  33. 33. @sdwouters Governments are not in charge in the financial world Governments Corporates Banks National central banks International central banks Central bank of central banks
  34. 34. @sdwouters Despite regulation, banks won’t stop ‘misbehaving’ cnbc.com/2015/10/30/misbehaving-banks-have-now-paid-204b-in-fines.html
  35. 35. Resulting in "cosy" relationships between financial businesses and regulators. We are fighting a never ending flood
  36. 36. @sdwouters HOW does it work? WHY does the Blockchain 
 exist?
  37. 37. Transactions Security The Blockchain works fundamentally different
  38. 38. Transactions Security
  39. 39. @sdwouters Money is sent directly between two parties
  40. 40. @sdwouters Money is sent directly between two parties
  41. 41. @sdwouters THE BLOCKCHAIN records who owns what, and when
  42. 42. @sdwouters Everyone can participate
  43. 43. @sdwouters Governments and banks dislike… because they have less control over us. They can't track what we do with it, so people can use it for illegal activities. CASH
  44. 44. @sdwouters Governments and banks dislike… because they have less control over us. They can't track what we do with it, so people can use it for illegal activities. CASH because they have no control over us. They can however track exactly what we do with it. BITCOIN
  45. 45. @sdwouters Anyone can see where a transaction is sent to and where it came from
  46. 46. @sdwouters What criminal leaves permanent evidence?
  47. 47. @sdwouters Digital currencies lowest risk in money laundering
  48. 48. @sdwouters Transactions are synchronised through the network
  49. 49. @sdwouters Every X minutes, they are permanently recorded in a new block in the blockchain …
  50. 50. @sdwouters Nobody can manipulate it
  51. 51. Transactions Security
  52. 52. Problems Solutions Central point of failure Decentralized network Expensive to secure Shared security cost Trust who is in charge Trust a fixed set of rules Centralized All organizations
  53. 53. Problems Solutions Central point of failure Decentralized network Expensive to secure Shared security cost Trust who is in charge Trust a fixed set of rules Centralized Decentralized All organizations The Internet & Bitcoin
  54. 54. @sdwouters An open blockchain is secured by computing power 
 from people and companies all over the world
  55. 55. @sdwouters In return for their efforts, these “miners” 
 earn Digital currency and tiny transaction fees
  56. 56. The miners and nodes verify the transactions and add them to the next block in the Blockchain
  57. 57. @sdwouters When you change a transaction in the past
 the link to that block changes as well
  58. 58. @sdwouters The network will know that your version has been messed with and reject it
  59. 59. @sdwouters You need to create a longer blockchain than the entire network combined
  60. 60. @sdwouters The Bitcoin network is over 25.000 times stronger than the top 500 supercomputers in the world
  61. 61. Problems Solutions Central point of failure Decentralized network Expensive to secure Shared security cost Trust who is in charge Trust a fixed set of rules Decentralized Who is in charge of the network/computers?
  62. 62. @sdwouters Improvements can be proposed by developers around the world bitcoin.org/bitcoin.pdf … github.com/bitcoin/bips
  63. 63. @sdwouters If the majority of the network agrees, the code can be changed / UPDATED
  64. 64. @sdwouters WHAT can we do with it? HOW does it work? WHY does the blockchain 
 exist?
  65. 65. @sdwouters Sending money 1 BTC
  66. 66. @sdwouters Sending money 0.00000001 BTC1 BTC
  67. 67. Money is the 
 tip of the iceberg
  68. 68. @sdwouters Logical evolution INTERNET Transfer information BLOCKCHAIN Transfer ownership TEXT IMAGES PROGRAMS VIDEOS MONEY CONTRACTS PATENTS ASSETS
  69. 69. @sdwouters Everledger stores unique info and ownership of diamonds on the Bitcoin blockchain everledger.io
  70. 70. @sdwouters “The Blockchain could disrupt everything”
  71. 71. @sdwouters THE BLOCKCHAIN IS AN INEFFICIENT DATABASE
  72. 72. @sdwouters Better sharing of data? WHY IS a Blockchain Amazing TO USE?
  73. 73. @sdwouters 3 Censorship resistance 2 Immutability WHY IS a Blockchain Amazing TO USE? Decentralization 4 1 Open Innovation 5 Open Access
  74. 74. @sdwouters 3 Censorship resistance 2 Immutability 5 Open Access Decentralization 4 1 Open Innovation Banks/governments won’t replicate the Blockchain
  75. 75. @sdwouters Should we have forbidden these too 
 because criminals can use them? Technology always reflects society
  76. 76. @sdwouters Remember them, they outweigh the bad minority
  77. 77. @sdwouters But all these banks are investing in BLOCKCHAINS!
  78. 78. @sdwouters They are no longer trying to build a “private blockchain”
  79. 79. @sdwouters Some still try to build private blockchains Controlled Innovation Controlled Access (Auditable) Privacy High Transaction Capacity No Volatile Cryptocurrency No Mining Security Costs
  80. 80. @sdwouters The Open Blockchain will create the most value
  81. 81. @sdwouters Bitcoin is driven by the same force that grew the Internet to billions of users: Open innovation
  82. 82. @sdwouters Don’t skip learning about it
  83. 83. If Bitcoin is so great, 
 why isn’t everyone using it?
  84. 84. ‣ Bitcoin is only 7 years old, it still needs a lot of development.
 ‣ This has never been tried before and it is about money, not information.
 ‣ Bitcoin is like the Internet in the 90s: 
 ‣ People don't get it. ‣ It looks ugly. ‣ We have few use cases. ‣ People don’t see how it will change the world. ‣ Those who are disrupted by it will do everything to stop it. ‣ Mainstream 10 years later ‣ Mass adoption 20 years later
  85. 85. @sdwouters Perhaps you think you don’t really need it
  86. 86. @sdwouters But the world does
  87. 87. Thanks! 
 Want to learn more? WWW @sdwouters sam.wouters@duvalunion.com samwouters.com

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