Visited this one in Sweden last summer: https://www.eketorpsborg.se/eketorp-fort/
Not everything was available/open due to Covid-19. But very interesting place from early Scandinavian iron age. (300 AD).
Readit NewsBBergdahl commented on Iberian Citadel of Calafell, Iron Age Village atlasobscura.com/places/i... · Posted by u/CapitalistCartr
Thank you very much for this! I am sorry that I did not know about it sooner.
Anyway the question for HN - is it too "late" for a person to consider career change in 33? To clarify, I am not in IT business, my formal education (and job) is in business administration, however with recent and important changes in my private and work life, I am considering to bite the bullet. Initially, I considered back-end development, but actually Linux sysadmin might be more appropriate for me.
I switched to IT at 40. Doable. But Swede so a lot of options like paid paternity leave, tuition free university and so on made it easier.
It's not necessarily the amount of waste that is the problem, it's the incredibly long duration of its radioactivity. At some point we will need super long term storage, and it's true that there is no viable solution out there yet. Even the most sophisticated facilities can not guarantee that no leakage will contaminate the surroundings at some point.
But as I said, I think finding a solution for this should not be our main priority.
We do have a final long term storage solution for spent swedish waste. Location selected and approved, method tested and the cost has been covered by a nuclear waste fund fee on the produced power. In short it's copper clad steel capsules put in holes surrounded by bentonite clay down in deep shafts dug in stable bedrock. It's probably a waste of good breeder fuel. But it won't leak due to any natural occuring incident in a very, very long time.
I think there is information in english here for the curious. https://www.skb.com/ (They have a nice guided tour down in the research mine the did dig to study water flow and chemistry, can recommend it.http://www.skb.com/research-and-technology/laboratories/the-... )
There is probably other ways of doing it, but saying there is no method ready is wrong. I would prefer to burn it again in a breeder and get 500yr waste instead of 50k yr waste. But if we're going to bury it, this will keep the stuff safe for the time needed.
BBergdahl commented on Which epidemiologist do you believe? unherd.com/2020/04/which-... · Posted by u/akbarnama
South Korea is effectively a island nation in this context: ain't nothing much passing over their land border unless something goes severely wrong in North Korea.
Very true
BBergdahl commented on Which epidemiologist do you believe? unherd.com/2020/04/which-... · Posted by u/akbarnama
The problem with the Giesecke approach is that it relies on 2 assumptions being true. 1) that infection brings long term immunity to the currently circulating strains. 2) that covid-19 will not mutate into a new strain with equivalent pathogenicity to which those with immunity to the current strain are no longer immune.
If either of these are false then you will not get a meaningful form of immunity in the population. Currently we don't have any evidence that either assumption is true so pursuing this approach carries an increased risk for very little benefit.
On the other hand, if we don't get long term immunity from the virus we wont get it from a vaccine either. In my opinion there is three paths through this. Two of them depends on immunity.
1. Slow down the spread with soft lockdown, let it pass and get immunity. Will take a long time.
2. Try to severly limit spread with hard lockdown. Either to open up and do lockdown again as necessary or stay in lockdown. Untill vaccine. This is a long road. Optimistic figures is a vaccine somewhere second half of next year.
3. Contact tracing and severe quarantine for infected and contacts until the virus is eradicated. Quick, only possible if the spread is limited. You can't open your country to others until they have done the same or a vaccine is here. The unicorn exit is of course every county doing this and a total eradication of the virus.
A country could possibly change track from strategy 2 to 3 if the spread is down really low and contact tracing is in place. Testing without tracing wont do it.
So soft lockdown in maybe a year or more, deaths will be in the 0,5% vicinity, more in some countries, less in some. Hard lockdown in the same timespan as above. Less deaths but will you have any society to return to? If you do hard lockdown for a while and then lighten up you're in situation 1 basically or forced to lock down soon again. Number three is very attractive. Had we all been prepared and had plans for this like South Korea and being island nations with easily shut borders like NZ it would have been simpler. But most countries were not and are not any of that.