Tech wise, what significant improvements have we seen in the Bitcoin protocol since 2009?
Are prohibitively expensive fees for transactions the inevitable end of a deflationary blockchain?
I think the current mania stems from the belief that Bitcoin is forever and the underlying algorithm can't and won't fail when mining becomes impractical and the fees get too high some time in the future. Also, the scaling issue still hasn't been addressed in 2017.
>>3455970
Capitalisation of all banks on world include central banks with gold reserves
https://pastebin.com/ZUxTmR99
a blockchain dies when it becomes too expensive to use and the tokens become worthless.
you would need something like a combination of proof of work and sharding, in combination with off chain transactions to handle micro payments to scale something like bitcoin to visa levels. at that point though if you had a built in scripting language you could replace the internet since youd have basically self hosting uncensored websites... i cant imagine any coin could do that, let alone bitcoin.