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tech? no! man, see... (technomancy@icosahedron.website)'s status on Thursday, 07-Sep-2023 03:40:35 JST tech? no! man, see...
- halcy:icosahedron:
@halcy at first I was thinking lasers but then I was like nah, probably TCP
everyone forgets about it because it really does Just Work 99.9% of the time but it's pretty impressive!

In conversation about a year ago from icosahedron.website permalink
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  halcy:icosahedron: (halcy@icosahedron.website)'s status on Thursday, 07-Sep-2023 03:47:56 JST halcy:icosahedron:
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  @technomancy TCP has evolved a lot, though
  although, admittedly, in a really weird way where the congestion avoidance algorithm somehow keeps getting less sophisticated and it works better and better
  
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  tech? no! man, see... (technomancy@icosahedron.website)'s status on Thursday, 07-Sep-2023 03:51:22 JST tech? no! man, see...
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  - halcy:icosahedron:
  @halcy huh, I'll have to read up on it some more
  I was kind of going off wikipedia's claims of "However, while significant enhancements have been made and proposed over the years, its most basic operation has not changed significantly since its first specification RFC 675 in 1974, and the v4 specification RFC 793, published in September 1981."
  consistent with "we got the general gist from the Aliens but didn't fully grok the spec and had to fix a few things later"
  https://en.wikipedia.org/wiki/Transmission_Control_Protocol#Development
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    Transmission Control Protocol
    
    The Transmission Control Protocol (TCP) is one of the main protocols of the Internet protocol suite. It originated in the initial network implementation in which it complemented the Internet Protocol (IP). Therefore, the entire suite is commonly referred to as TCP/IP. TCP provides reliable, ordered, and error-checked delivery of a stream of octets (bytes) between applications running on hosts communicating via an IP network. Major internet applications such as the World Wide Web, email, remote administration, and file transfer rely on TCP, which is part of the Transport Layer of the TCP/IP suite. SSL/TLS often runs on top of TCP. TCP is connection-oriented, and a connection between client and server is established before data can be sent. The server must be listening (passive open) for connection requests from clients before a connection is established. Three-way handshake (active open), retransmission, and error detection adds to reliability but lengthens latency. Applications that do not require reliable data stream service may use the User Datagram Protocol (UDP) instead, which provides a connectionless datagram service that prioritizes...
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  halcy:icosahedron: (halcy@icosahedron.website)'s status on Thursday, 07-Sep-2023 03:55:08 JST halcy:icosahedron:
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  @technomancy https://en.m.wikipedia.org/wiki/TCP_congestion_control the devil is in the details, or in this case, sub-article, as is tradition
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    TCP congestion control
    
    Transmission Control Protocol (TCP) uses a congestion control algorithm that includes various aspects of an additive increase/multiplicative decrease (AIMD) scheme, along with other schemes including slow start and congestion window (CWND), to achieve congestion avoidance. The TCP congestion-avoidance algorithm is the primary basis for congestion control in the Internet. Per the end-to-end principle, congestion control is largely a function of internet hosts, not the network itself. There are several variations and versions of the algorithm implemented in protocol stacks of operating systems of computers that connect to the Internet. To avoid congestive collapse, TCP uses multi-faceted congestion-control strategy. For each connection, TCP maintains a CWND, limiting the total number of unacknowledged packets that may be in transit end-to-end. This is somewhat analogous to TCP's sliding window used for flow control. Additive increase/multiplicative decrease The additive increase/multiplicative decrease...

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