LOL I was trying to answer my own question a little better and ran across this gem of a thread:

https://forums.virtualbox.org/viewtopic.php?t=86399

The hoops poor windows users need to jump through.

Anyway the way this relates to my question is that in the Windows world, at least, some of the "features" they have were blocking VT-X from being used by higher level virtualization tools.

What I am getting at, in essense, is the only vectors I can really see as being widely used would be if someone like Lenovo integrated some simple exploits into their drivers. Any drivers that needed to go through WHQL would either not have exploits or would make Microsoft Complicit in this massive crime that was perpetrated on us.

So who was actually using Spectre?

If I were using it, hypothetically, I would want it on all the cloud devices I could infect with it; through drivers like netcode or something.

But to reliably use it on a virtual server, doesn't seem nearly as practical as those other vectors.

But I honestly don't know. The world is changing too fast, I can't keep up!

It almost sounds like you misunderstand what the exploits are.

I think the people who really understand how the exploits were actually used are still prohibited from discussing them.

Read about "variable scope".

You can use the same variable names in different functions and objects, and most of the time they are not shared across those functions or objects.

In other words, a variable may not be available to a function the way you'd expect unless you learn the ins and outs.

Thanks. You could be David Bowie in this;

https://www.hooktube.com/watch?time_continue=6&v=BNDnzxlBoS4

I think it is setting _a to half of itself. /= is a "divide by and set" operator. So the joke is it is setting itself to itself divided by one, which should be the same. But if _a is an INT or something, then the 1.0 would actually be [if the interpeter is sophisticated] setting itself to the same value with a different type.

But I don't know why _a is special.

What language? I don't understand? Is it setting a constant to a decimal value of itself maybe instead of a float or a single digit?

I don't know this language I don't think so I don't know what is special about underscore a.