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In the alternative future where I have a smart "IOT" refrigerator that buys its own groceries, why can't it just use bitcoin, or litecoin, or anything else that's proven and doesn't use broken crypto?
I´m still not convinced that Internet-of-Things applications actually need to make use of a cryptocurrency at all.
Let´s take your refrigerator example. What exactly is the advantage of using a cryptocurrency compared to using
conventional programming without any cryptocurrencies or tokens? I think it is much more probable that
the refrigerator will be connected to Amazon or other popular merchants for groceries instead of using
a blockchain or a blockchain-less currency like IOTA at all.