Relativistic effects are observed with many other 6th and 7th period elements. For example, the yellow colour of gold and caesium comes from altered electron energy levels due to relativistic orbital contraction, so are the special catalytic and bonding properties of platinum.
A lot of earlier digital timepieces come with arbitrary date range limits and I have always wondered what is the reason behind such limitations.
For example, a lot of camera date backs (used to physically embed time and date on film) could not be set to any date post a certain year, most commonly 2020 but I’ve also seen 2019 and 2029 as cutoffs. Even models that has a 4 digit year format isn’t immune from this issue, and sometimes it’s possible to bypass it by setting the date to Dec 31 2020, let the it roll over naturally to Jan 1 2021 and you will then be free to fast forward the date.
Maybe it’s similar to the YEAR 10000 bug on modern Windows OS where many internal variables could overflow beyond a certain datum so it would make sense to prevent it in the front end.
Before computerization of the finance industry, banks used to keep stashes of "ransom money" with all serial numbers already recorded so they could be tracked to some extent. This is no longer necessary as modern money handling equipment makes it trivial to keep a detailed log of every single bill they receive or give out.
And what if you forgo banks entirely? Well, governments have also been legislating to slowly stigmatize cash use. Google "civil forfeiture" and you will find countless examples of the police taking people's money away without due process, as if carrying large amounts of cash itself is a crime.
Arbitrary search and seizure at the border has been a steady feature in western countries for, like, the solid part of the past two decade. I have travelled to the USA three times during this period and during every single visit I had been pulled aside by the TSA for extra screening (SSSS). In the last 5 years or so when I return to my home country of New Zealand, I have been repeatedly searched by customs which has never happened before.
I would not be surprised at all if my name is on a list somewhere, despite me being very much inactive on social media and does not subscribe to any remotely radical ideology. Perhaps as a unmarried millennial male I just had that Unabomber vibe and must be stopped before I turn.
I do sympathize with Mr Murray , however there is really no need to act like it was a brand new development when similar stuff has been going on for pretty much my entire adult life and his recent career.
https://en.wikipedia.org/wiki/Relativistic_quantum_chemistry