Children can play  "non childrens" games. I was playing Goldeneye 007 when I was 10. We dont need Telletubbies to capture the childrens market.

Who said anything about telletubbies? The examples he gave were Pokemon & Animal Crossing.

You really think parents will buy consoles for their kids if games aimed at kids dont exist?

Sure, I would. Give them uncharted, COD, little big planet, gran turismo, Final fantasy, etc etc.

PS4 portable is not possible within the next 3 years. So no.

Will still not be a "PS4 portable". A PS4 portable will mean that it can play PS4 games. Even in 2021 with what I am guessing will be 7nm tech you cant get the PS4 APU to draw no more than 20W.And don't forget PS4 games take up on average 40GB per game.

The Switch exists. We are seeing games from PS4 be playable on a fully portable device. The switch isn't even considered the maximum output of what a handheld could be, it's Nintendo playing it safe.

Knowing this, why is it so unfathomable for a playstation device with more power, and the backing of a streamlined PS infrastructure to make down port time minimal(think Xbox running Win 10) to exist in a portable capacity? The Switch is proof that the tech exists.

Not to mention, none of us fully know the full extent of the tech done in secret. All these companies keep things close to their chest until they are ready for us to know.

Yeah, the Switch exists. And? How are those PS4/X1 ports doing on it? Just a simple recompile after some slider adjustments? Couple weeks work maybe?

Nope. Not one bit. See porting to the Switch is actually more of the same. While developers using Unity will have an easier time (at a performance cost) PS4/X1 games generally are ported to Switch using the same concepts that PS3/X360 games were ported to Vita - adapting/replacing the engine until the it loads the game without crashing, reworking/downscaling all of the assets, simplfying models/rigging/animations, possibly downsampling the audio, rinse/repeat until you get something playable, then optimize/bug fix/add console-specific features until you go gold. This requires months of works and teams of professionals. This is not arbitrary. This is not easy. This costs real money.

Sony cannot have such a solution for a "portable PS4", can they? So, how does Switch prove anything again?

If you want to assume that there's some magic algorithms out there that are capable of doing this, be my guest, but at least be honest that it's little more than wishful thinking. And No, Microsoft's UWP doesn't actually apply to this at all . Please go and check it out, learn about how it truly works, and how that isn't going to help Sony make a portable PS4 at all. (I'll give you a hint: the minimum requirements of the PC games made under UWP aren't lower than the XBox One's specs for a reason).

You would probably need a decently high ambient for the Switch's active cooling to engage, I haven't played around with one, so I can't say for sure with any certainty, but it would likely engage more often during say... A hot Australian summer.
There is most certainly a fan in there.

It could also be operating at a low RPM to keep noise and power consumption low as well.

It's the same idea as the Xbox One, that console had such an over-engineered cooling solution, you didn't even know the fan was running. It was great.

HBM would be good, you can include it on the SoC's packaging that way to conserve space.

But yeah, cost and all that.

The more modern the GPU is... The less flops it needs to match the older hardware.
I would not be surprised if a modern 800Gflop GPU beats the Playstation 4's GPU when fed properly.

It's called efficiency.
You won't need as much raw bandwidth in a mobile device as the Playstation 4 for example thanks to Delta Colour Compression.

The Playstation 4's GPU is old, slow, hot and inefficient.

The Switch isn't using the latest and greatest of battery technology anyway, there is allot of room for improvement in that regard.
In-fact the Switch isn't using the latest and greatest of anything, except for probably some of the tech in the Joycons.

As for laptops, clearly you have chosen the incorrect device. My notebooks tend to last 10+ hours on a single charge.

I can't imagine them making one myself.

You're on point. If PS4 Mobile/Portable is the exact same chipset as the PS4 SS, then it will run everything with zero modification. If the PS4 Mobile/Portable uses the same CPU, but has to sacrifice some GPU power it would require a patch to games, but it would be extremely quick. You are still workng with the same CPU and GPU architecture, and working within Sony's custom API. It is not like porting from PS2 to PS3, or PS3  to PS4, or any combo with Vita. Even building a game for Switch and PS4 requires a massive amount of additional effort, because you have ARM, Nvidia, and two different API's.

Best case scenario, PS4 Mobile/Portable just plays PS4 software with no need for modification. Worst case, you have a similar situation to the PS4 Pro, but it would be even simpler process.