Blockchain is a useless technology

Blockchain, a way of implementing a distributed ledger (distributed record-keeping), is a novel technology with little real-world practicality.  The original Bitcoin white paper published back in October 31, 2008 spurred little interest in distributed ledgers.  The distributed ledger was ignored for years until Bitcoin started receiving mainstream attention and a few years had passed.

I simply couldn’t find much evidence that distributed ledgers are useful for any real-world applications (other than speculative asset bubbles).  Once you understand that blockchains are bad at solving real-world problems, then you will understand why Bitcoin will fail.  The blockchain imposes limitations that makes Bitcoin a bad version of something that has been tried in the past: e-gold (description here and Wired profile here).

A company’s stance on blockchain can also serve as a test of a company’s management.  In my view, companies pushing blockchain technology (e.g. IBM, Microsoft, Intel, Oracle) are disconnected from customers’ actual needs and have mediocre management.  Companies that don’t talk about blockchain (e.g. Facebook, Amazon, Google, Apple) are more likely to produce sensible technology that will work in the real world.

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The future of advertising

Summary:

  • Online advertisers should be able to monetize their ads more effectively in the future.  This will be a huge tailwind.
  • Scale will be a moat.
  • Youtube has a bright future ahead of it.
  • I suspect that television advertising and ad agencies will face serious headwinds.

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Online advertising (GOOG, FB, etc.)

I believe that online advertising offers significant value compared to traditional advertising because online advertising can be tracked very easily.  Internet advertisers can track the click-through rate on their ads and how many of those clicks convert into a sale.  This gives instant feedback on the ad’s return on investment.  Advertisers can optimize their advertising budget to maximize their profits and split-test different ads and landing pages (the webpage that the ad points to).

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