Also mentions scale as not important before pointing out the biggest issue with bitcoin is scale which is hindering adoption...

The biggest issues in crypto this year have revolved around scale. Should bitcoin have bigger blocks, should there be segwit, what about proof of stake, can be shard/prune the chain, why can't Litecoin and others operate as transaction layers... Every single big event in crypto tech this boiled down to scale and no they can't be "solved" through the natural progression of tech. Do the calculations, calculate the size of BTC and Ether's chain and their growth rate and tell me that's viable for decentralization. Vitalik didn't just put out contracts to scale Ether if he thought it was so simple. No one has the answer to scale yet which is why Rai has been so impressive.