>You shouldn't ask for disprove studies if you don't provide proof studies.

My point was that we don't know what the long-term effects of vaping are. Because there hasn't been time for the longitudinal studies that will tell us what those effects are.

I requested studies refuting those claims because I know they don't exist. I also know that studies confirming such claims don't exist either.

Making the statement that "...vaping is still unhealthy but less than smoking plant matters" is disingenuous because we have no idea what long-term (note that qualification) effects vaping does or does not have.

It might be that vaping increases human lifespan by 80%. Or it might be that vaping decreases lifespan by 25%. Or it might be that vaping either causes or prevents dementia. We just don't know. It may be that none of those things apply. Who knows? Not me. And not you or anyone else. Yet.

Because vaping hasn't been widely used for long enough to make claims about its long-term effects.

My claims are just as valid as yours ("...vaping is still unhealthy but less than smoking plant matters").

That was my point. My apologies for expecting you to make the conceptual leap and understand the above by making similarly unsupported claims as the one you made. I guess that wasn't the best way to do so. I'll try to do better in the future.

I hope I've cleared up your confusion.