Originally posted by Mooncatt My original reply to you got too political for the forums, so I'll just present this video trying to show masks being effective as an example. The actual demonstration shows the opposite when you consider what they say and how they edited it.
I'm afraid I'm missing your point here.
I think we're seeing the same video, appreciating the same aspects but are able to put a different spin on it.
I see it as wearing masks + socially distancing (as is prescribed here in UK) = reduced likelihood of inhalation of droplets from someone else in the vicinity. The video did show that without masks, droplets travel further (in the case of coughing as demonstrated).
It doesn't
eradicate it, because that's not feasible for mass populous (cost and resource constraint).
The distance travelled is significantly greater
without a mask. If you're not also social distancing in that regard then you're at even greater risk of inhalation of, potentially COV-containing, droplets.
In general, and in my opinion, it's a simple case of:
x portion of population is infected with a virus.
In order for virus to spread, they must be in contact with, or transmit via breathing,
y portion of population.
If restrictions/lockdowns are followed as prescribed, then
x population is at a significantly reduced probability of being in contact with
y population.
If there must be some potential crossover of
x population and
y population, then other mitigating measures (e.g. hand sanitising for reducing contaminated contact surfaces, social distancing for reducing physical contact, mask wearing for reducing spread of contaminated droplets) should be adopted and adhered to. Contaminated droplets are also not solely person-to-person. They may be person to surface, at which point reducing the distance of spread is also valuable at reducing cross-contamination.
If they are not adhered to (as we are all aware of), then the lockdown/restriction/mitigating measures fail.
In short, the failure is not in the lockdown or mitigating measures themselves, it's in the human population's ability to follow instruction.