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jrnvs

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jrnvs
·2년 전·discuss
They can’t be made in a factory and thus the learning effect is very small (if it even exists - nuclear reactors have increased in price).
jrnvs
·4년 전·discuss
I doubt it. The current system is a local optimum. Better local optimums already exist elsewhere.

In The Netherlands, direct online payments using debit cards are very common. These are secure payments, verified through a bank’s mobile banking app or internet banking with 2FA.

https://en.m.wikipedia.org/wiki/IDEAL

This means there is no risk for the seller that a payment gets reversed. There is fraud, but it centers mostly on social engineering people to authorise payments for others, or to mail their debit card to “the bank” for “recycling”.

Cost per payment: about 30 cents.

Meanwhile, in other countries, credit cards are the common online payment option. Security? A number on the front of the card and a “secret” second number on the back of the card.

Cost: 1.5-3.5% of payment.

Better security is possible, but it’s hard to move from a local optimum when you’re locked into a certain ecosystem.

The credit card no-security scheme works because everyone gets reimbursed for fraud. It comes at the cost of retailers handing a few percent of every transaction to intermediaries, instead of just a few pennies.
jrnvs
·5년 전·discuss
Burn biomass (plants) in a power plant to generate electricity, then store the carbon dioxide in empty gas fields. This is called BECCS, Bioenergy with carbon capture and storage [0].

Unfortunately, carbon capture and storage is not economical (yet). Let's hope it will be soon, with EU CO2 prices already reaching 50 euros / ton this week [1]. If I understand this International Energy Agency report[2] correctly, many forms of carbon capture become economical if these price levels subsist in the EU (and other economic blocs impose similar prices on their industry).

[0] https://en.wikipedia.org/wiki/Bioenergy_with_carbon_capture_... [1] https://www.reuters.com/business/energy/eu-carbon-price-tops... [2] https://www.iea.org/commentaries/is-carbon-capture-too-expen...
jrnvs
·5년 전·discuss
Here's an interview with the photo operator, in Dutch: https://nos.nl/artikel/2377417-fotofinish-operator-amstel-go...

Interviewer: Is it possible that the photo was taken a wee bit before the black line? Photo operator: I doubt it... I doubt it because we really took a good look if it's all been set up correctly.