realdense
ERC-20 tokens are the magic that enable second-layer "currencies" such as DAI and others to work on top of Ethereum. There are other tokens, even WBTC (Wrapped Bitcoin).
DAI itself is backed by a basket of token-based assets such as WBTC, WETH, USDC, USDT etc.
The Ethereum dApps are definitely a fun rabbit-hole to dive into, e.g. UniSwap, Synthetix and other DeFi applications.
The main problem as I see it is the transaction costs are very high (I looked into using UniSwap but it was going to cost > $50 to transact what I wanted). However, in the next few years the Eth2 improvements will help scale the network and hopefully see transaction prices fall.
Really? Most people who use Firefox are still exposed to tracking. Google is still the default search engine and promoted via Firefox Home, and continues to track the large majority of users who don't change their default. Pretty sure Facebook and Twitter are promoted via the default home page as well. Third party cookies, browser profiling and other tracking mechanisms have barely been addressed. Mozilla seems more focused on lip service, shameless self-promotion and double speak than addressing the problem. The so-called free web is a joke, it's a web of giants, and companies like Mozilla who are mere pawns in their protection racket.
Hopefully uptake by non-mainstream browsers like Brave will increase the exposure, attract developers, increase the network and get us closer to having IPFS, Hypercore or some other protocol available to the mainstream, whether that be in Firefox or by some other means.
Besides, you could argue that browsers have added plenty of fad technologies over the past few years, DRM comes to mind.
Linux kernel 5.10
gcc 10.2
libc 2.31
Perl 5.32
And some non-essential packages that look to being included in the upcoming release (I'm sure there's plenty of other exciting inclusions that I've missed):
GNOME 3.38
KDE Plasma 5.20
Xfce 4.16
LXQt 0.16
MATE 1.24
Cinnamon 4.8
Apache httpd 2.4.46
Python 3.9
LibreOffice 7.0
QEMU 5.2