An episode of Flash last year explained that with the Timeline Remnant phenomenon. Reverse-Flash was integral to all of existence because his action (killing Barry's mother) is what created the reality of the Berlanti-verse as we first knew it. So any version of Reverse-Flash traveling through time leading to the…

We know things do change or Gideon wouldn't be able to see the things she does. Based on what we've been told, the Legends, parked out in the temporal zone, have the benefit of seeing things in flux as the timeline is shifting, before changes are solidified. On the other hand, Barry and other Speedsters are Speed…

The timeline is a singular entity, but their method for traveling through it is different. Barry brute forces through with the Speed Force like a bullet hitting a thin metal plate. What was solid goes wavy briefly. On the other hand, the Legends are using a piece of technology designed to have low temporal impact.…

The main problem I'm having with using Thawne and Darhk is that they both have status quos they must be returned to by the end of this season, right? So their plans and desires have been nebulous at best (which isn't interesting) and we know where they have to end up.

I kept waiting for that shoe to drop. Rory was so confident that Rene wasn't her type based on the Thea he sees now. I was expecting Diggle to overhear and lead to…

I see a lot of Earth-2/Black Siren speculation going on and, while I have zero theories about Laurel appearing at the end myself, the possibility of Earth-2 doppelgangers being back in play raises a very important question that I've had since Flash's third season began…

Prometheus has been such a master of misdirection that I almost don't want it to be as simple as Team Arrow thinks it is right now. Like you said, someone related to Oliver's collateral damage would be cool.

To use comics lingo, The Flash and Legends of Tomorrow's episodes were the event miniseries and the Arrow episode was the branded tie-in. It had a big "Invasion!" logo on the front cover, but is mostly supplemental reading related to yet not essential to the main story arc.

The Hawks decided to spend time off on their own rather than stay with the crew (not at all because most viewers hated them or anything), Rip goes missing in action after an accident in the second season's premiere and Snart sacrificed himself at the end of last season.

Personally, I'd have preferred if none of these episodes had functioned as an entry of the individual show (treat the crossover like a neutral stand-alone miniseries), but it was weird that Tuesday felt like Flash and His Super Friends and Wednesday was basically a normal Arrow episode with a little extra spice thrown…

And I think last night's Arrow officially settled on the stance that she's a lesbian rather that bisexual. LoT has had her only noticing women all season so I'd been wondering what the deal was and I guess now we know. Her teenage fellows were avoidance, Oliver was an aberration and all my Sara/Snart shipping last…

The Flash and LoT episodes are really, genuinely fun as a two-part event (let's not pretend that the Arrow episode was really even part of this crossover), but the very obvious production seams keep this Invasion! experiment just shy of being a homerun. I mean, we totally got an RBI ground rule double or a long ball…

I seem to have liked this episode less than most, yet I recognize what was appealing about it for many. Personally, I'm just not the biggest fan of "The life I could've had" stories for the most part. I've seen/read a lot of them at this point, so it has to be done particularly well to break out of the pack…

At first I just assumed Cadmus must have altered it to not affect humans, but, if they can change it like that, it begs the question of why still leave Kryptonians immune. It was an odd plot point for sure.

The CW promoted it as part of the crossover, but the producers were very upfront about Supergirl as a show not being involved I'm interviews. I'm not sure misleading casual or potential new Supergirl viewers is going to pay off the way The CW hoped.

I can't figure out why they decided to wrap up so much this week. It felt incredibly rushed in most cases to me. Like two episodes shoved together rushed. Medusa paid off immediately, Lillian got arrested, J'onn was cured, Alex got the girl and the Mon-El attraction barely had time to simmer before being acted on. I…

There's a very simple explanation for how anyone on Teams Flash or Arrow have any of the stuff they need to get their hero on or lead a civilian life: Ray Palmer and Martin Stein. They each know their former teams are comprised of insanely-focused pseudo-idiots, so they take the Waverider back to 2016 all ninja-like…

Well, Jeff, they better not have invented anything important either. Or they better not have been a really important historical figure serving as a low-level grunt. If they already had their kids before death, I hope their mom's second husband doesn't move the family to a city that prevents the family lineage from…

Hail Mary prediction: Doctor Alchemy is an "erased" Barry or, more accurately, an amalgamation of all the ones we've known. Like Rival, he's a Barry that remembers other lives and the anguish of all he's lost makes him hate the timeline-shredding Barry we've been following for years a.k.a. Screw-Up Barry.

I'm with you. The inconsistent time travel logic between LoT and Flash has been a problem for me since the beginning of this show. Barry saves his mother a mere decade and a half ago, many things change in 2016. Rory heat blasts people to death hundreds of years ago, their descendants no longer existing doesn't affect…