the smoke is from the burning of fuel

kind of what happens

the engines have to throttle up first

Start at 2:20

so you get some fumes

go into slow mo

the rocket is also

restrained

As soon as the jet stream starts, you can see thrust

so that the engines can throttle up

I've been through this video many times

it is then released from clamps

and if its engines produce more thrust than it has gravitational attraction to the earth

it will immediately begin moving upwards

the smoke has nothing to do with a pressure differential

There is ZERO thrust until a medium is created

no

False again

Feel free to watch it over and over again

it's coincidence, not causation

yes, smoke is present

that's because when you burn carbon based fuels

they tend to smoke

so the fuel that is creating thrust

2:24 to 2:28

no movement

also happens to be creating smoke because it's basically a kerosene fire

until gas is ejected and pushed on

I haven't watched the video but I assume that you are watching a space ship launch off from the ground right

Regardless, the vacuum is an inequivalent comparison to space

you can see the rocket move the second the jet stream appears @Rigg5

You're not comparing apples to apples

?

I mean

And yes, to an extent

Nope

if it needed a medium to move

it would have the atmosphere to push off of so

it’s not a perfect vacuum

Space is 10 to -17 tor value

smoke isn't necessary