There are two main paragraphs that Slo-poke has written that you can look through, one in this thread and one on the Ex-F1 thread.
I have put the important bits in bold
"Been there done that, Big Tea! Doesn’t pay. You’re simply stepped on and ground in. Tidy-up a tyre burning rear axle to the point Rosberg can pit on lap one and then drive to a very impressive second place and all you will receive is a, “Welcome to the piranha club.” from an entity known as E.J. Spa, Channel Four T.V. Post so-called illegal tyre test. So-called because it was actually an engine test. So! What-a-to-do? Hatch and execute a plan to burn ‘em down. Once realised Wolfy boy stomps up and down the pit lane calling everyone a male body part with a head on it. (Second Silverstone).
They came, they sought, they were oh-so close with a C.V.T. Austria. So were gifted that final elusive step that’s worth billions, only to be blinded by Horner to its origin! Big fat black cloud on their National Emblem for that one Christian. No matter though! They have all their ducks in a row ready to fly back Far East in order to seek loftier goals I’ll bet. I actually wish them well as they’re leaving behind them much enjoyment to be had. I, for one, will relish watching the two cuckoos getting ejected from their feathered nest.
The above are a few concrete material facts, that you will all choose to disbelieve... hey-ho"
"Directly after the Austrian race last year, I sent in to RedBull Racing information pertaining to an invention that I created. No-one else created it, I did. That is how I know the Honda engine and the electrification of it will, coupled with Mr. Newey’s supremacy with chassis’s, provide you and I with proper formula one racing this year.
Now! The invention was originally sent in to Brackely two races prior to end of 2013 mainly because I became very seriously ill and in desperation I unloaded to them, for which I received a ‘now piss off’ reply. I think I’m right to help out RedBull Honda as both are Competitors and not posers and I wish them well.
As for the radio exchange Bono to Russell. What’s actually happening there is when Bono says switch magic on, the magic is no longer in operation. Then when Bono says switch magic off the magic is actually working. It’s a mislead, a hoodwink concocted to keep what they have to themselves. Trouble is I know all about it. I’ll give you this, it’s a method construed to preserve rubber.
Later this year when RedBull Honda have mathematically sewn up the championship I’ll divulge it all. Until then please feel absolutely free to mock, sneer, jeer and laugh out loud as much as you are able to or want, I don’t give a jot"
My summary based on wading though the conjecture and taking things seriously is that;
* They have worked for Merc
* They came up with a silver bullet which has given them the last 7 titles
* They have now given that knowledge to RB
* From what I gather, they have come up with an invention that uses the electrification of the engine to promote tyre wear and the cars transmission/gearbox along with the engine is used to facilitate this silver bullet.
So not only are Merc using the electric part of the engine to make the car go fast, but they are using it to extend tyre life and tyre performance. Somehow this tech is fed to the tyres from the engine, through the gearbox. RB now knowing the silver bullet, are using one of their tokens on a brand new gearbox for the RB16B...
Newey would have copped on to this trick if RB had been given a Merc engine as he would have seen the performance difference and where it could have and could have not come from, so I don't think Merc are doing anything illegal, just something exceptionally smart
Honda followed the same engine design, engine electrification, of Mercedes so the same tyre tech can be used with the right technology added