Are there any apps being developed for Sublinks?

I hope so, good luck

In my experience all of this has been done wirelessly for several years.

The risk of malware means you aren’t allowed to plug in sticks. For business use you share a document or wirelessly connect to a display.

In fact our local library didn’t USB sticks eight years ago when I was researching our family tree.

SMS messages are sent through a message centre. It might be owned by your carrier or a third party. On Android in Messages if you look in settings under Advanced you’ll see SMSC followed by a phone number. That’s the number of the message centre your phone contacts to send an SMS

Agreed

Don’t use it. Find it causes confusion.

Voyager is also available as a native app. Note that because of authentication changes in 0.19 no PWA will be able to simultaneously support 0.19 and lower versions. It will require a native app.

Yes, this is a really important change.

Avelon (App Store version) now supports 0.19

Generally conservation of energy applies in a closed system, so wouldn’t apply at the creation of the system.

(Plus we can’t (yet) be sure what caused the Big Bang if it happened)

I’ve always liked the idea that matter, space and time are the way we observe the interactions of fields. So gravity waves make an interesting idea as to how part of it might work

Did you know there is some evidence that our brains are apparently aware of certain events before they actually happen. This isn’t supernatural but possible evidence of something going on outside of the space time we are familiar with. Or that time is not a straightforward arrow in one direction.

Pulsars are made of matter, which runs into the how did it all start problem (if there was no big bang to create the matter)

Yes, but black holes are an accretion of matter, that as far as we know is locked away until it evaporates. For there to be a net increase in overall matter due to gravitational waves there’d need to be either another source of waves (as in the field theory) or the waves would have to produce matter at a rate in violation of E=mc^2+C (which could be wrong)