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Seems like a pretty solid portfolio! Iota seems very promising and power ledger will be huge no doubt :)

Hopefully power ledger works out. It's a really awesome project but hard to realize for global usage atm

True but it is backed by Richard Branson (the billionaire with an entire island powered by solar power) and western power which is the only company which can sell power in Western Australia (I know this as i live in perth). I have always been big on solar energy the technology has been going crazy recently. Time will tell though :)