First, he is clearly a gold bug. There have been gold bugs that have come to see the value of bitcoins, but most not so much. Comparing the prices of gold and bitcoin through the Cyprus panic gives some understanding of why the gold bugs feel threatened by bitcoin. Historically, that type of financial panic has been very good for gold. This time, gold barely budged, and people moved their assets into bitcoins instead. In fact, gold recently dropped below its 200-week moving average.
Second, this quote:
Milton Friedman’s monetary understanding, alas, was not very good.
The writer's understanding of Milton Friedman, alas, is not very good. I have a degree in economics, and I tutor college-level economics and finance. In my sessions, on a regular basis, I help students understand this formula:
MV = PT
That formula was created by Irving Fisher, but most of the work expounding on and popularizing the formula was done by Milton Friedman. Monetary base * velocity of money = Price level * transactions.
Actually, the success or fail of alternate currencies, such as bitcoin, relies intrinsically on how they fulfill the demands of this monetary truism. The monetary base of bitcoins is expanding at a fixed rate until 2140, and then it will remain constant at 21 million bitcoins. Velocity is a tricky issue, and I have seen a lot of discussion about hoarders: are they good or bad? The answer relies a lot on the other side of the equation. Price level is the value of goods you can receive for bitcoins, or as popularly measured, the amount of dollars you can receive for bitcoins. (Technically it would be the amount of Bitcoins you can receive per dollar, for the formula to balance properly.) Transactions are trade taking place in bitcoin. This is why people care so much about whether there is transaction demand or speculation demand. The formula doesn't care: speculation buying is part of T, but long-term stability requires stable transaction demand.
A full exposition could obviously be made, digging into the mechanics of each element and how they pertain to bitcoins, but I choose not to at this time. Suffice it to say, I think bitcoins stands up well in its design and could
eventually become more stable than any fiat currency, but that time is far in the future and relies on the stabilization of velocity and transactions.