Flu really does kill a lot of people. Covid has killed many too.
Thw WHO estimates 10% of the world population have had it, and something around 1 million people globally died. Giving it a death rate 50% higher than flu. Whatever the truth of that, its not "ten times more deadly". (except maybe when statistics are skewed by government policy that sent infected and hospitalised people off to care homes to infect the other residents).
Lockdowns simply shift the problem along a bit - kicking a can down the road. Government tried it in Feb just to get out of the Flu season so the virus could be better treated in the summer... well, that was the plan. It would have been a good one too, but over-reaction and panic is what governments do best in times of crisis, and so they shifted it to... autumn, just in time for winter flu season. Go gov!
Musk is correct about the BD test, even if he's misinformed about the PCR one (however, never assume people are specific on twitter though, 140 characters means you have to use generalisations and cannot go into detail. Twitter makes wikipedia look like Encyclopeida Brittanica for accuracy). 84% sensitivity rate and the manufacturer says not to take any result as definitive.
The PCR tests accuracy... still out.
Among specimens from SARS-CoV-2 RT-PCR-positive individuals, the percent seropositive increased with time interval, peaking at 81.8-100.0% in samples taken >20 days after symptom ons
This study sent samples from people who definitvely had the virus off for testing. The results aren't quite as promising as you'd hope. That 95% success rate looks like its only in optimal conditions and days since infected - 11 days or later, it'll pick it up (but I think you're cured by then, surely?)
https://covidtestingproject.or...
Also the numbers do lie - right now we seem to have cured flu completely, only covid deaths happen. Or maybe, the stats aren't being recorded quite as accurately as you'd want, so you always have to take the stats into some sort of context. Similar to the spike in spring, when thousands of elderly were sent off to care homes to die.
One stat that does require further investigation though - the number of deaths (in the UK) is 57,408 in total. However of those 6077 were under the age of 65 and 2112 under the age of 55. The virus is deadly alright - but only to the old, young people are as good as invulnerable.
Unfortunately science has been trumped by political desires, ass-covering and media sensationalism. eg the Danish study on wearing masks (that apparently has found that they don't work) - so far, unpublished because they cannot find anyone willing to publish such a controversial study (ie one that doesn't agree with the government policy). Similarly, take a look at this and think "scientists questioning their own research, or too scared to leave their old research available when it goes against the party line". This is where we are today, Musk questioning these tests is essential as he is high profile enough to see that question actually debated, verified and brought to everyone's attention. Shame a lot of the response is simply to shout him down because he doesn't say what he's expected to say.