The "proprietary" OS features for accessibility are still ridiculously good and have only gotten better while Linux has been playing catch up.

I thought Kerbal was missing N-Body mechanics

Probably nothing. The battery controller will simply prevent anything stupid from happening.

Hamas launched their rockets into Israel, Israel retaliates with full scale massive military campaign --- Gaza Strip almost flattened as a result. While Hamas are terrorists (nobody can deny it) the Israelis are also not that 'non-terrorists' either

I don't know what certificates he settled on, but if you aren't doing a whole lot of international browsing, you can safely disable any foreign CAs (especially foreign government CAs or anything you can't read). In Firefox, you can get the country of origin by viewing the certificate and looking at Issuer, under the Details tab. "C = " will list the country code. Most of the big CAs are in the US, but there are a few big ones that aren't: Comodo, StartCom, Thawte, AddTrust.

In Firefox, you can disable without deleting, by clicking "Edit Trust...". Even if you delete a root CA, it will show back up on restart with all of its trust disabled. You can't delete them permanently from the UI.

Have you heard of this thing called Google, numbnuts?

First quality two-layer PCBs, gold flashed with solder mask and silk screen both sides, are available within 10-14 days for $5.00 per square inch, and for that price you get three of them.