We have been here before. I don’t remember who made it but there’s a really good video on YouTube explaining why better help started another massive ad campaign on YouTube. Better help was involved with a fraudulent doctor finder website that was directing people to better help. That website got shutdown by the FTC just before better help increased YouTube funding so the hypothesis is they are trying to recoup that lost income because it was a significant revenue source.
The obvious awnser would be VR and AR where the faster the refresh rate is the less likely you are to get motion sick. A display with a refresh rate that high would be displaying a frame every millisecond meaning if the rest of the hardware could keep up a headset using this display would be able to properly display the micro movements your head makes.
Mold is actually the biggest concern with the most popular archival format LTO. EMPs aren’t that much of a concern. Bit flips and bit rot are your main concerns traditionally when using flash for archival storage. It’s recommended if you go the flash route to keep your array hot (ie powered on) and use a file system with data scrubbing capabilities such as ZFS.
It wouldn’t be the best of ideas because the flash used for SD cards do not have the same kind of write endurance as other types of flash media.
Sorta… If the array was built with hybrid ZFS within unraid which is what the majority of unraid users go with as it allows for better mixing of various sized drives and easier expansion of the array in the future (in other words the main selling points of unraid) then you do not get any of the safety nets ZFS provides as what unraid is essentially doing is making a single drive zfs vdev for each drive in the array. In unraid’s own words “ZFS-formatted disks in Unraid’s array do not offer inherent self-healing protection.”.
FYI you probably shouldn’t be saying you feel really comfortable with your data safety while suggesting unraid. The way unraid handles it’s storage will lead to data loss at some point. Unraid only locks down an array and protects it when smart starts issuing warnings that a drive has failed. Smart isn’t magic though and when a drive starts to die it might start writing garbage data for days if not weeks before smart catches on. If a drive writes garbage for long enough there’s nothing you can do to fix it due to that way unraid handles arrays. This is why ZFS is such a popular option as it treats hard drive with a level of skepticism and verifies the data was actually written correctly along with verifying the data from time to time.
That’s not even mentioning unraid is charging for what other software does for free.
The avarage user doesn’t need all the buttons accessible at every moment as such are willing to trade convenience for space saving and cost reduction. Some people though mainly professionals with hyper specific niches go the opposite direction and trade space and cost for oversized keyboards in the name of efficiency.
Trading terminal keyboards are the easiest keyboards to point to utilizing their additional keys for more streamline trading in an era before algorithmic trading 
Belive it or not just like click switches, large keyboards still popup within the mech keyboard community. Hyper 7 being the most well known (and has a group buy currently going) but there’s also the wombat 200% which features twenty rotary encoders. Some people have been getting the best of both worlds by utilizing a modular mindset. A 75% keyboard with an external numpad and macro pad has the same functionality as a battleship.
Short selling, Wallstreet thing for making money when the stock. It kinda works like borrowing a stock and immediately selling it, then we it’s time to return the stock you borrowed you buy a replacement and if the price has gone down you keep the profit.
Ubiquiti unifi: pretty preformant while being dead simple to set up. No licensing fees but upfront price is steep. If you really get into networking you will find their hardware and software stack limiting especially if you need speeds greater than 25 gigabit.
Mikrotik: single handedly the best value out there. Their OSes can be confusing at times and you may need some CLI skills to do everything but it’s a good learning platform.
Opensense: highly flexible where you can tailor your experience to exactly what you need. If you are the type of person who wants all of the bells and whistle along with fine granulated controls this is your option.
Openwrt: a good choice if you already own a supported device but I personally wouldn’t go out and buy hardware for openwrt when opnsense is a better option.
Cisco: there are two types of people who buy Cisco, those who are obtaining their CCNA and those who have their CCNA.
tp-link omada: directly marketed as a ubiquiti unifi competitor but cheaper. Being a new line of products it’s not really time tested. I’ve heard very polarizing opinions on them so your milage may vary.
meraki: Cisco’s other brand. Sometimes you can get their hardware for free because they make all of their money off of the licensing fees.