This doesn't follow because it would assume that XMR is currently maxed out on bandwidth or Moore's Law considerations, which is false.
Terabit bandwidth will be available to fixed locations in that time-frame. Mobile bandwidth isn't really an issue, because thin clients will be used for mobile, exclusively, for the foreseeable future. I just don't see bandwidth as an issue for XMR, ever. For some users, always, but for network strength and integrity, as well as capacity? No. Lower consumption would aid in decentralization, but unless your hard requirement is to maximize decentralization (as I suspect it is for AnonyMint) it's not a problem.
I mis-spoke when I suggested flash was necessary to the blockchain. Magnetic storage is quite cheap and adequate for full nodes, and will already scale 10^3.
Even if his requirement is for maximized decentralization his argument is still false. PCs are not maxed out on XMR today. Even some smartphones could almost certainly run XMR today fairly well. (I'm running it on a nettop that is smartphone-class, and it is nowhere near maxed out.)
That is because as far I know you are not close to maximizing transactions (and Peter R showed that market cap is correlated to the square of an increase in a proxy for txs as a proxy for user adoption), and as far as I know in fact proactively discouraged them recently by raising tx fees to deal with a DoS attack. At micro transaction scale (which I assume Monero is not targeting), I think Monero would be at limits on PCs near-term. The paradigm appears to be broken to me at multiple levels including which is that if an authority compels me to reveal my passwords, they can unwind all my anonymity on the block chain (and if enough people comply, then even those who didn't reveal their passwords have their anonymity set reduced and potentially lose anonymity).
I realize I am talking about issues that are not Monero's target market, i.e. it was designed for privacy and not to defeat the NSA. And it was designed for the level of txs Bitcoin handles, not for some nirvana of a micro transaction funded WWW to replace Google's fascist ad-funded takeover of the internet.
I suppose I should soften my criticism from "joke" to "not up to the standard of my idealistic hopes".
But my love ones are asking me to stop revealing hints. So I guess you will assume you are correct for the time being.