Thank you for sharing that paper I had not read it yet, but I’m familiar with Taleb and his consistently negative views about Bitcoin and crypto. I think any of the points made are equally valid against Zcash currently so it would be a good exercise to think out how Zcash can improve to counter his suggestions in the future. Below are my most interesting cut outs from the paper
In its current version, in spite of the hype, bitcoin
failed to satisfy the notion of “currency without government” (it proved to not even be a currency at all), can be
neither a short nor long term store of value (its expected
value is no higher than 0), cannot operate as a reliable
inflation hedge, and, worst of all, does not constitute,
not even remotely, a safe haven for one’s investments,
a shield against government tyranny, or a tail protection
vehicle for catastrophic episodes.
Furthermore, bitcoin promoters appear to conflate the
success of a payment mechanism (as a decentralized
mode of exchange), which so far has failed, with the
speculative variations in the price of a zero-sum maximally fragile asset with massive negative externalities.
Earnings-free assets with no residual value are problematic.
The implication is that, owing to the absence of any explicit
yield benefitting the holder of bitcoin, if we expect that at
any point in the future the value will be zero when miners are
extinct, the technology becomes obsolete, or future generations
get into other such “assets” and bitcoin loses its appeal for
them, then the value must be zero now.
Cumulative ruin
If any non-dividend yielding asset has the tiniest probability of hitting an absorbing barrier (causing its value to become 0), then its present value must be 0.
SUCCESS IN WRONG PLACES
More generally, the fundamental flaw and contradiction at
the base of most cryptocurrencies is, as we saw, that the
originators, miners, and maintainers of the system currently make their money from the inflation of their currencies rather
than just from the volume of underlying transactions in them
Gold and silver proved then that they could neither be a
reliable numeraire, nor an inflation hedge. The world had
become too sophisticated for precious metals. If we consider
the most effective numeraire, it must be the one in which the
bulk of salaries are paid, as we will show next
Payment system
There is a conflation between “accepting bitcoin for
payments” and pricing goods in bitcoin. To “price” in
bitcoin, bitcoin the price must be fixed, with a conversion
into fiat floating, rather than the reverse
THE DIFFICULTY WITH INFLATION HEDGES
This does not mean that a cryptocurrency cannot displace
fiat –it is indeed desirable to have at least one real currency
without a government. But the new currency just needs to be
more appealing as a store of value by tracking a weighted
basket of goods and services with minimum error
Fallacy of libertarianism
Fallacy of safe haven
Fallacy of the Agency