Ciro's Edict #4 Updated +Created
Fandom (website) Updated +Created
Complete metric space Updated +Created
In plain English: the space has no visible holes. If you start walking less and less on each step, you always converge to something that also falls in the space.
One notable example where completeness matters: Lebesgue integral of is complete but Riemann isn't.
Yitang Zhang's theorem Updated +Created
There are infinitely many primes with a neighbor not further apart than 70 million. This was the first such finite bound to be proven, and therefore a major breakthrough.
This implies that for at least one value (or more) below 70 million there are infinitely many repetitions, but we don't know which e.g. we could have infinitely many:
or infinitely many:
or infinitely many:
or infinitely many:
but we don't know which of those.
The Prime k-tuple conjecture conjectures that it is all of them.
Also, if 70 million could be reduced down to 2, we would have a proof of the Twin prime conjecture, but this method would only work for (k, k + 2).
Computer science course of the University of Oxford Updated +Created
Course lists: www.cs.ox.ac.uk/teaching/courses/ True to form, courses appear to have identifiers, e.g. qi for the Quantum Information course of the University of Oxford rather than more arbitrary A1/A2/A3, B1/B2/B3, naming convention used by the Mathematics course of the University of Oxford and the Physics course of the University of Oxford, and URLs can either have years or not:
The "course materials" section of each course leads to courses.cs.ox.ac.uk/ which is paywalled by IP (accessible via Eduroam): TODO which system does it use? Some courses place their materials directly on "www.cs.ox.ac.uk", and when that is the case they are publicly accessible. So it is very much hit and miss. E.g. www.cs.ox.ac.uk/teaching/courses/2022-2023/quantum/index.html from Quantum Processes and Computation course of the University of Oxford has the assignments such as www.cs.ox.ac.uk/people/aleks.kissinger/courses/qpc2022/assignment1.pdf publicly visible, but e.g. www.cs.ox.ac.uk/teaching/courses/2022-2023/modelsofcomputation/ has nothing.
Handbook:
DNS configuration of Ciro Santilli's website Updated +Created
AKA how this GitHub page gets served under the domain: cirosantilli.com
Ciro only touches this very rarely, and always forgets and go into great pain whenever a change needs to done, so it is important to document it.
The last change was of 2019-07-07, when Ciro moved from the www subdomain www.cirosantilli.com to the APEX cirosantilli.com. A redirect is setup from the www subdomain to APEX.
GoDaddy DNS entries:
Type    Name    Value                   TTL
A       @       185.199.108.153         1 Hour
A       @       185.199.109.153         1 Hour
A       @       185.199.110.153         1 Hour
A       @       185.199.111.153         1 Hour
CNAME   www     cirosantilli.github.io  1 Hour
Moved cirosantilli.com to Porkbun 2022-02, unfortunatly records were not automatically updated and domain went down for a bit, upadded to new entries for IPv6 as well which are not documented by GitHub:
TYPE 	HOST	ANSWER	TTL	PRIORITY	OPTIONS
A	cirosantilli.com	185.199.108.153	600
A	cirosantilli.com	185.199.109.153	600
A	cirosantilli.com	185.199.110.153	600
A	cirosantilli.com	185.199.111.153	600
AAAA	cirosantilli.com	2606:50c0:8000::153	600
AAAA	cirosantilli.com	2606:50c0:8001::153	600
AAAA	cirosantilli.com	2606:50c0:8002::153	600
AAAA	cirosantilli.com	2606:50c0:8003::153	600
CNAME	www.cirosantilli.com	cirosantilli.github.io	600
  • Custom domain: cirosantilli.com
  • Enforce HTTPS: checked
And the CNAME file is tracked in this repository: CNAME.
Puzzle Updated +Created
Computer manufacturer Updated +Created
This section is about companies that integrate parts and software from various other companies to make up fully working computer systems.
List of fighting game Updated +Created
Condenser microphone Updated +Created
General Matrix Matrix Multipliation Updated +Created
The terminology GEMM is present on BLAS, and has stuck pretty much.
Bezos Academy Updated +Created
Bezos Academy is building a network of tuition-free, Montessori-inspired preschools in underserved communities.
Bone Updated +Created
Mutagen Updated +Created
DNA mutation type Updated +Created
Nervous system by species Updated +Created
Continent Updated +Created
The CSS of Ciro Santilli's website looks broken Updated +Created
That which does not exist, cannot be broken.
Questions for Ciro Santilli's future self Updated +Created
Future self, answer these.
10 years:
  • 2017-2027: did self-driving cars become big?
  • 2017-2027: did virtual reality become big?
20 years
  • 2018-2038: are companies offering free full genome decoding just to get your genomic data and sell it to pharma companies?
    Someone like Ciro then creates an open source genomic database funded by health organizations that publishes genomes + phenotypes anonymously. Genome to phenotype analytics go crazy big.
40 years:

There are unlisted articles, also show them or only show them.