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Having not been solved isn't equivalent to being unsolvable.
What is your definition of scaling? It seems there are multiple solutions to increasing TPS, albeit modest but increases none the less.

My definition of scaling is millions of transactions per second. I hope scaling can be solved. We won't know until we try our hardest.

It is an unsolved problem.

I would be happy with a few hundred tps right now for eth or btc.

Well when demand comes time will tell.

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