In a recent episode of "The Joe Rogan Experience" episode#2194. Luis Elizondo makes a claim that there is a High-Definition, Military Video of an underwater object that was bigger than an Off-Shore Oil Derrick and was clocked at over 500 miles per hour (450-550knots.)

External Quote:

Source: https://en.wikipedia.org/wiki/Derrick#Oil_derrick

External Quote:

Source: https://en.wikipedia.org/wiki/Knot_(unit)

This is the video I in which Luis Elizondo makes this claim. Source: https://youtu.be/9gLPtRwXgCM?list=PLk1Sqn_f33KuWf3tW9BBe_4TP7x8l0m3T

The following is an excerpt from the conversation they had about this topic.

Timestamp 43:50 through 45:15

Elizondo: "So uhm, our focus was looking specifically at military sourced information. I was not focusing at all on what the private citizens were seeing because at the end of the day, we couldn't use it. You can't, you can't do anything with the data."

Joe: "And it seems like you got plenty of compelling footage from the military."

Elizondo: "Overwhelming, overwhelming. Uh its, there's absolutely no doubt, that we didn't have to look at civilian data, because we had better collection sensor systems from the military that was looking at stuff and giving us better insight."

Joe: "If you can't tell us about, can you give us some sort of an understanding of like, what you're talking about?"

Elizondo: "Yeah, sure, uhm."

Joe: "Without being specific."

Elizondo: "Yeah let me see, uhm, ok yeah, uhm. There is a uh, a video, high resolution video, of a, I can't say what platform it was taken from, I can't say where it was taken from."

Joe: "Ok."

Elizondo: "But uhm, an object that you know. Do you know how large a, uh, an off shore oil derrick is? They're huge right?"

Joe: "Yeah."

Elizondo: "They're almost like a small city, they're like one city block, they're huge, they're enormous things. Uhm, there is a video that shows one of these objects underwater, that goes by uh, the speed was calculated between 450 and 550 knots underwater and it was bigger than the off shore derrick that it was passing, because you could see in the video the offshore derrick and you could see this thing zip right by it."

I don't believe anything that large or fast exists underwater, including man-made, natural or supernatural.