My reaction would be amazement at how Sony's engineers managed to do something that's literally impossible with the PS4's current hardware.

And after that, I wouldn't use the feature. I don't know what reason I would have to play PS3 games on PS4 instead of PS3.

Its not that simple. Let me complicated it for you.

I don't have specs, but I don't need those I have logic.

A common misconception of CPU's is the correlation between power and speed (clock rate). Clock rate only increases power, if the faster cpu executes more instructions in the same amount of time as the slower one. This is hard because complex instructions typically take more time.

The PS3 cpu was not only fast, but able to run complex instructions fast cause of proprietary shit or something.

Point is, trying to emulate that is going to take a cpu that is basically just as fast or at least specialized, a near impossible task when also trying to change the architecture, decent emulation of PS3 games would need a top tier PC, in a console its a pipe dream.

However, emulation is not the only way for backwards compatibility, XB1's backwards compatibility for instance, is not emulation.

Don't care. If I want to play PS3 games, I will play them on my PS3.

"What if the PS4 had PS3 BC..." threads are just as annoying as the "the NX rumor" threads. First of all, I played all of the PS3 games that I wanted to and Frankly, I'm burnt out on PS3 games. I want new games to play. It's a redundant feature. The PS4 is not designed to be BC with the PS3. It's too damn late to add that feature.

My reaction if sony announced true PS3 BC for the PS4 would be to soccer kick repeatedly into the balls whoever made the decision to add it.

I would be like: that's nice but let me know more about the other PS5 features.

Given that the CellBBE is faster at many things than the PS4 CPU, my reaction would be disbelief.

I look forward to the day when you comment on Sony thread without taking a jab.

I don't see it happening given the high price they still sell PS3 , it seems it has high production costs.
And i don't think so PS4 is powerful enough to emulate with software PS3.(Also PS3 has weird architecture with that custom cell proccessor)

So PS3's Cell Broadband Engine is 4Ghz and the PS4's is 1.6Ghz? So I guess that's why Sony wasn't concentrating so much on BC, right?

Well, according to Sony, X number of PS4 owners never owned a PS3. Those guys can do what I did when I got a 360--go back and play some of the great games they missed. Conker Live and Reloaded got more play than 90% of my actual 360 games.

My reaction would be, meh. No need for it.