It's a formula I dabbled with to categorize technological improvements on blockchain implementations combined with year of introduction. Future generations will incorporate AI software and organize global computing power towards IoT. Once you incorporate & extrapolate the novel concept of blockchain with Kurzweil/Bostrom/John Smart theories the true potential becomes very crystallized 10-20 years out.

The growth we have seen from $10B --> $850Bn is a fraction of what will happen when AGI software and robotics make use of the logistical advantages of blockchain. Applied to economic growth as we have all witnessed in 2017, rather than energy expansion (kardashev), a singularity type event based on proposed metrics could improve global gdp on a multiple of x15 from $70Tn to 1 quadrillion in a decade (roaring twenties 2.0).

No one will see that coming as little as everyone did 2017. Crypto peak of 850bn in december will be fibonacci wave 1 in a few years.

Gen 1: Bitcoin/Doge/Ltc (pre 2015)
Gen 2: Eth/Lisk/Maidsafe/Solarcoin/etc (2016)
Gen 3: Pivx/Raiblocks (early 2017)
Gen 4: Bulwark/Force/Gobyte/Desire masternode ecosystem (late 2017)
Gen 5: Tethered coins tied to fortune 500 merchandise of which Marquise Museum is an early entrant
Gen 6+: AI/AGI pegged blockchains that uses a share of smartphone/pc computing power to drive IoT