You should be able to make a killing placing commodity bets right now, because you have such crystal clear vision for the causal chain currently underway
What are your top positions? You will never need to work again!
Interesting bit from that article wrt to transport infrastructure:
"most distributors simply stick to the industry standard transport of Grade 5. That is why for and [sic] end user of helium, a lower grade can cost more than the higher grades."
I've got the Android app and love it, as well as Knots 3D.
Most knot enthusiasts will already know about it, but in the analog world The Ashley Book of Knots is fantastic. Beautifully illustrated; the author, Clifford Ashley, was a marine painter and spent decades documenting almost 4,000 knots.
It is a wonderful catalog, but I don't find it to be as useful for learning to tie the actual knots as books by Budworth, Pawson, etc. (or Youtube, these days)
One of the cool aspects of knots for this audience is that they have a unix-like aspect where multiple individually-useful knots can be "piped" together, the example I like to use is the Trucker's Hitch:
112 and 911 (US) work on almost every mobile phone anywhere in the world. It's part of the GSM/UMTS standard. 999 is supported with either no SIM card or a UK SIM card. See §7.1 here: https://www.ietf.org/lib/dt/documents/LIAISON/file562.pdf
They also don't require a phone to be activated in most countries. I believe there are some exceptions in EU countries, but in the US it just needs to have a working antenna and be in range of a tower.
It's not good as a first line of defense for failover, but with some client software and/or failure mechanisms there aren't any better approachs I'm aware of. Some of the software I administer doesn't understand multiple A/AAAA records.
And a BGP failure is a good example too. It doesn't matter how resilient the failover mechanisms for one IP are if the routing tables are wrong.
Agreed about some providers enforcing a larger one, though. DNS propagation is wildly inconsistent.
I have mine set low on some records because I want to be able to change the IP associated with specific RTMP endpoints if a provider goes down. The client software doesn't use multiple A records even if I provide them, so I can't use that approach; and I don't always have remote admin access to the systems in question so I can't just use straight IPs or a hostfile.
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