Peter Todd @pete@petertodd.org

Sitting in Chicago airport, waiting for my Miami flight... and I hear someone on a laptop talking about Metamask.

But the worst part? I'm eating some fancy chocolate that I couldn't resist buying. Hope he doesn't recognize me. #blackmail

@openoms @waxwing I mean, anyone trusting a non-raid setup for Lightning is taking a fair bit of risk...

Though the failure modes of becoming read only or slow to write are pretty benign. Early SSDs were often bricked - good to see that's fixed.

@openoms @waxwing What % of the SD card was actually being used in those applications?

@openoms @waxwing Many drives can actually dynamically switch between SLC and multiple-bits-per-cell, so as much as 100% of the drive will be used in SLC mode until you fill it up. (By "fill it up", I'm talking about the space that has not been marked as unused with trim)

@openoms @waxwing More expensive drives use capacitor backed DRAM for this. If power is removed the drive quickly writes the DRAM contents to flash with the energy in the capacitors.

@openoms @waxwing Yup: https://www.anandtech.com/show/16433/samsung-introduces-870-evo-sata-ssds

https://www.pcworld.com/article/3230382/wd-blue-3d-ssd-review.html

https://www.tomshardware.com/reviews/silicon-power-p34a80-pcie-gen3x4-m-2-nvme-ssd,6180.html

Those are the first three results on Amazon for "1TB SSD", and they're all TLC flash. Bigger drives are moving to QLD flash, four bits per cell.

SLC-only drives are a very niche product these days. Though it is very common for drives to contain some SLC as a write buffer. That's why drive write speeds often drop after sustained writes - the SLC buffer filled up.

@openoms @waxwing "Rewrite cycles are respectively around:
80-100k for SLC
8-10k for MLC
3-5k for TLC (not suitable for constant rewrites even for months)"

Also the stats for rewrite cycles are much higher than they actually are. These days modern SSD cells have a rated lifetime of just a few hundred rewrites, not thousands. You see this in total endurance specs, which are typically just a few hundred times the drive capacity.

@openoms @waxwing "Single Level Cell (SLC) are basicly the common SSD-s which are more reliable and fast, but need more power and also more expensive than a USB flash drive."

This is out of date btw. Almost all SSDs on the market right now are multiple level cells.

@openoms @waxwing What brands/sizes have actually failed for you? Have you tried over provisioning?

A circular food system can withstand crises like COVID-19 — and provide delicious meals
https://theconversation.com/a-circular-food-system-can-withstand-crises-like-covid-19-and-provide-delicious-meals-159101

Heh, it's pretty funny reading pop-sci nonsense like this.

The truth is that circular food systems like feeding pigs waste food, or using compost directly to grow food crops, are explicitly banned in many countries to _prevent_ pandemics. The problem is insufficient sterilization allows diseases to circulate from waste back to the plate. The scariest example being prions.

https://twitter.com/ONsafety/status/1399786046695616513?s=20

It says so much that our scam Ontario government would use a stock photo of kids - at nearly zero risk to covid-19 - wearing masks outdoors while exercising - a situation where anyone is at nearly zero risk.

#covidcult

@verretor The science is always settled. Obey the science.

Pfeilstorch - Wikipedia
https://en.wikipedia.org/wiki/Pfeilstorch

Life finds a way. And so does science.

@lain Every single law is ultimately enforced by killing people. Usually not very often, as lesser enforcement tools usually work. But on occasion, people will die because of this law.

@openoms @waxwing agreed on license.
SD cards specifically designed for constant usage do exist. One big market for them is dash cams, which perform constant writes.

@jb55 COMPLY CITIZEN

Yes, that's woke Magic The Gathering fans getting worked up because marketing thought that they could reach out to nerdy military college students with rap spells.

https://twitter.com/ghirapurigears/status/1379135673890824195?s=20

Illinois lawmakers pass a bill banning police from deceiving juvenile suspects during interrogations - CNN
https://www.cnn.com/2021/05/31/us/illinois-bill-ban-police-deception-minors-trnd/index.html

Good start. Now do the same for adults too. Or make sure _everyone_ has access to a competent lawyer.