com.google.www becomes tab-completable from the most generic element to the least generic. www.google.com is .. not like that.
com.google.www becomes tab-completable from the most generic element to the least generic. www.google.com is .. not like that.
Wikipedia says JANET's e-mail addressing notation was defined by the "Grey Book", and this Usenet thread, http://neil.franklin.ch/Usenet/alt.folklore.computers/200209..., says the Grey Book domain notation comes from the Network Independent File Transfer Protocol (NIFTP aka "Blue Book", which was a different protocol from ARPANET's RFC 354 FTP). This 1990 JANET<->ARPANET e-mail gateway document, http://dotat.at/tmp/JANET-Mail-Gateways.pdf, says that JANET e-mail was transferred using NIFTP, so it would make sense that the domain part of the e-mail address would use NIFTP rules. Both above sources say (explicitly or impliedly) that JANET generally, and NIFTP specifically, were based on X.25, and X.25 uses big-endian addressing.
So on JANET the hierarchical naming scheme predated the e-mail addressing scheme[1], whereas on ARPANET the reverse is true. Both formats make sense as path dependent outcomes.
[1] Presumably JANET still adopted user@ because the message format was based on RFC 822, according to that gateway document above, but it was still worth partially deviating from RFC 822, which explicitly defines little-endian domain syntax, because of JANET's pre-existing host addressing scheme.
Same with SQL. I am giving SQL trainings this year, and I have to explain why the server will read your query in a completely different order than how you write it.
As for SQL, you write
SELECT TOP 10 ColName FROM TableName WHERE X = 10 ORDER BY ColName
and the server reads
FROM TableName WHERE X = 10 SELECT ColName ORDER BY ColName TOP 10
It is not "mostly" the right order.
And right to left assignment for mathematics or programming.
USA
DC, Washington
Pennsylvania Ave, 1600
Office of the President
President Donald Trump