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José Camões Silva Profile picture
José Camões Silva
@josecamoessilva
Online notebook; standard disclaimer applies. I graduated in the top half of my high school class.
Apr 29, 2022 • 8 tweets • 2 min read
Saw a video with someone [who clearly "loves" science but never learned any] talking about net-zero (i.e. ending fossil fuels) by intensifying use of current "zero carbon" [if we ignore their lifecycle] technologies.

Mostly electrifying things and adding batteries. 1/ It makes little sense to build massive new infrastructure for technologies that are very far from the needed performance; investing in the creation of new technologies (as opposed to incremental improvements of current tech) make a lot more sense. 2/
Apr 28, 2022 • 4 tweets • 2 min read
Now picking fights with traditionalists (as in, do it the hard way, not the pragmatic way), in addition to frequentists… 🤓🤓🤓🤓🤓 If the Norwegians gave Nobel Prizes for circumspection, I'd offer this as my entry for the shortlist. 🤓🤓🤓🤓🤓
Apr 27, 2022 • 5 tweets • 2 min read
I have complex thoughts on this matter but:

> If we forgive student loans, […] a 100% refund is warranted.

If it's a _refund_ then the universities are the ones to pay them, not the taxpayers (or the banks).

This is not my position, but let's be consistent. 1/ My position is that (1) contracts entered into freely shouldn't be nullified because it's popular; (2) going forward, Univs should be co-signers of the loans (which would change their admissions/offerings a lot, I'm guessing); (3) merit scholarships should be the norm. 🤓🤓🤓 2/
Jan 12, 2021 • 4 tweets • 2 min read
Well, who're you gonna trust: Russ Hanneman or a Hahvahd rower?

Neither. But the data, that we trust.* And the data does indicate something. Something as sublte as a Fünfzig Billionen Mark note**😱

*Yeah, it's Fed data. Get over it.
**50 trillion Marks. Yep, it's confusing. I'm sure there's nothing to fear that in less than 2 decades the Federal Reserve assets went from less than 5 % of GDP to close to 40% of GDP (as the economy grows, mind you).

Nothing to fear at all. Trust the system. 😱😱😱😱😱
Jan 10, 2021 • 5 tweets • 2 min read
Yanis Varoufakis on Degrowth

Ahem… for starters:

Zeroing derivatives = no affordable insurance.
Zeroing CO2 = no life.

(The things he wants growth in depend a lot on the things he wants degrowth of. Any input/output matrix will show that.) 0/ The problem with this view of the world, that we can get rid of the bad things and increase the good things by fiat, aka the toddler view of the world writ large 😱😱😱, is that there's a technological constraint on how the world works at any given time. 1/