I entered Japan close to two weeks ago from Europe. Super strict and well managed border control. Passengers were supervised and escorted to a special quarantine hotel for the first three days of quarantine. After that they use an app on my phone to keep track of where I am. For 14 days I have to "check in" my location multiple times per day.

The place with no border control i Europe. Not Japan.

The 3 days quarantine is only for people arriving from a list of countries with a known mutated strain. It's much less strict if the passenger did not arrived from the listed countries ([1]; the one in the parenthesis, the table below is countries which PCR result is required).

Officially the rule is to be quarantine in the designated place for 14 days and to report everyday. However, the loophole is the designated place also includes your home, and if you happen to use LINE, the daily report becomes just a button press in the app. Location tracking is only recommended, not required. (The Japanese document on location tracking is just to enable location history on Google Maps or enable Significant Location on iPhone[2])

[1]: https://www.mhlw.go.jp/stf/seisakunitsuite/bunya/kenkou_iryo... Note the English version of this document is very outdated (Mar 26, 2020 for the English version vs. Mar 21, 2021 for the Japanese version.) See [3] for a more up-to-date one, although in a different format.

[2]: https://www.mhlw.go.jp/content/000652555.pdf

[3]: https://www.mofa.go.jp/ca/fna/page4e_001053.html The list is in Section 2, in the (Note 1), with the most horrendous formatting possible.

If only they did the same thing to Japanese nationals...

... lucky there's no world sporting event that will congregate thousands of people from around the globe in Japan in a few weeks time.

They should have cancelled the Olympics to at least 2022... I hope historians don't look back at sports ball being the catalyst of third/fourth waves and stronger/newer strains all across the globe in 2022.

International spectators are not allowed at the Olympics this time. And there will be strict protocols for athletes. Not sure how this can cause such a massive new wave.

You think Japanese spectators are somehow immune to COViD?

What do you mean by “absolutely no border control”? As far as I know quarantine is required to enter Japan.

Not for japanese nationals