Is how Daemon [spoilers] his wife even possible?

You might want want to add a spoiler warning in the title of your post.

But I do agree, it was a lame scene.

I am guessing that they chose the big cloak and hood so that they could switch out Matt Smith for an animal handler for that shot where you see him from the back reaching up when the horse rears.

For what it's worth, the after-show commentary describes Daemon as an improviser who gets lucky.

He wasn't planning on killing Rhea until the instant the horse reared.

Pushing over an entire horse still seems absurd, I agree

I was so confused, I thought he had developed magical powers.

I think it would take a detailed study of the physics to verify the possibility, and I doubt it could be done. However, to play devil's advocate a bit:

The horse is rearing, thus its angular momentum is "backwards," that is toward its tail.

It center of gravity would be high. Horses in general would have their center of gravity several feet of the ground due to their build. Rearing up on its hind legs would likely raise the cog up to over four feet, likely five.

With the cog so high, a could, just, conceive of a strong person shoving the horse in the chest, increasing its angular momentum toward the rear, causing it to tip over backwards.

Now, having said all that, I think that, while the horse could be tipped, it would more likely fall sideways, which could still severely injure, if not kill, the rider.

Overall, this is one of those things we should attribute to the fantasy elements of the universe in question. (No, I'm not one of those who claim that anything goes in a fantasy. But I am willing to stretch my suspension of disbelief a bit in a fantasy setting.)

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The Road from Antioch
In the Markets of Tyre
Flight to Lystra
The Theater at Ephesus
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I’m glad this thread exists because I myself was confused at the beginning of the episode as to what was going on. Didn’t know who the lady was until she stopped & saw Daemon & exclaimed “Husband!” So then I figured it out but everything that came after confused me.

After a few jibes about his person & Rhaenyra, he approaches the horse & the lady whatever her name is, her demeanor all of a sudden changes & she reaches for a weapon I’m guessing & then the horse rears up, knocks her off where she falls flat on her back & I assumed she was paralyzed. First she’s whimpering & afraid & then when he walks away she taunts him again which was stupid because then she was afraid for her life again.

What made her suddenly be afraid? What made her think in that split second that he was going to harm her? He drew no weapon when he approached her. I’m trying to understand why she came to that realization & why he even wanted to kill her. Anyone else?

I'm not a huge fan of how they've handled Daemon - I thought his one-man army assault on the Crabfeeder was ridiculous - but I'll play devil's advocate.

My interpretation of the scene was that it was ambiguous as to whether he originally intended to kill her. When she began goading him, then fearfully reached for her bow and her horse reared, Daemon could either have been trying to calm the horse down or forcing it off-balance to crush her. It's also ambiguous as to whether he was just going to leave her critically injured, to die slowly, before finally committing to finishing her off with the rock because she continued insulting him. My overall impression was that she made up her mind that Daemon intended to kill her - sensing his silent rage (as we saw when he beat his brother's soldier) - before he had, perhaps hastening her own death.

By this point in the series, we are meant to understand that Daemon is some kind of super-humanly skilled warrior and knows exactly how to make a horse fall over.

"Is how Daemon [spoilers] his wife even possible?"

Ohhh, I WONDER what the missing word might be. *facepalm*