They don’t differentiate risk and impact. The Oxford calculator seems to be personally focused, and for me, that’s I what. Reading was relatively low risk. See

They don’t differentiate risk and impact. The Oxford calculator seems to be personally focused, and for me, that’s I what. Reading was relatively low risk. Seems to correlate with what I’ve read. But the microcovid calc rated something I was previously accustomed to doing regularly as “high”. For me that wasn’t intuitively accurate. I guess for an immediate community of vulnerable or averse people, then high would be right. But not me personally. Quite difficult to disentangle the personal from community risk. Likely to lead to risk averse behaviour. And that is fine, but only if the mitigation is accurately taken into account. It seems unlikely that would have been done.