Speculators in the crypto community continue to describe Brooks move as a stepdown, however, in terms of company size and brand awareness in the crypto space considering his office as CEO of Binance US previously.
At each point information from neighbouring data is used. As the time series considered are finite, the areas at the start and end of the data (especially at higher period bands) will not have all the data required. One solution to make computation possible, chosen here, is to pad the time series with zeros where required. However, the zero padding will impact the reliability of the results. It is standard to use a cone of influence to represent this difference in reliability of results. Pale colours represent those areas outside the cone of influence with less reliable results (as seen on Fig 3). Higher period bands require more data for computation resulting in the cone shape.

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But no true cryptocurrency emerged until the late 2000s when Bitcoin came onto the scene.