One of the coolest things about seeing a show at the Fillmore is getting the posters they hand out. A number of bands sell, or have their artists, sell show posters (which then become collectible limited editions); it's way less offensive when it's King Gizzard and the Lizard Wizard than when it's Wizards of the Coast.
The usual answer is "config macros", because if you don't give people something Turing complete they'll just m4 their way into Turing completeness and that isn't really an improvement. (Starlark in Bazel, etc.)
Another intuition is that near a minimum you can Taylor expand the function and show that the higher order coefficients (past the square) are negligible.
It is common for big workplaces to have multiple unions and essentially all unions are sectoral and role-specific rather than company specific.
Take the NHS; it will have to deal with ten plus separate unions - https://nhsunions.org/#about – of which the biggest powers are the British Medical Association and the Royal College of Nursing, but the cleaners are GMB or Unite and they're huge pan-working-class institutions.
Education has to deal with the NEU, the NASUWT, and the NAHT, each of which has a different political slant. Some unions in the UK have been historically rather centrist in their politics (a good example of that is Prospect, https://prospect.org.uk/about/, which is a roll-up of a number of scientific and finance unions), some are firebreathing communists, but all of them work across employers.
There's also no such thing as a closed shop in the UK – because there are much stronger worker protections, there's less of a need for one.
arXiV is not intended to be your blog. You should be held to a zero-mistake standard when publishing academic work.
The people I worry for are the junior researchers who are going to be splash damage for dishonest PIs. The PIs, though, deserve everything that’s coming for them.
You’ve got nine years of experience, so work your network and get referrals. It’s very hard to get mid-career jobs through the front door; most people want someone they trust to vouch for you.