louis_

For an easy-to-read chat list, I chose in a recent tui application to adapt to the age of the message and write only the hour for today's messages, "Yesterday" for yesterday's messages, the week day for 2 to 6 days messages (so this couldn't be ambiguous), month+day for previous messages, year+month+day for last year+ ones. Works pretty well!

A snappy terminal doesn't prevent you from seeing half-filled screens. Flicker can occur when you write line-by-line. That happened in a recent TUI application I wrote. Using synchronized update mode solved the problem.

I'm thinking of TUI-based messaging applications, where you would rather see the actual image than a placeholder like "[Image #1]". Well I admit I'm a TUI person, too lazy to grab my mouse.

Hi there. Just a precision: the fact that the sum of the interior angles of a triangle is 180 degrees is not really provable, it is a postulate of the Euclidean geometry. It is an intuitive and accepted property, it reflects the fact that the geometric space usually considered is flat. Proving this statement would be possible provided that you change basic postulates. At that moment, it would become a proposition of these new mathematics and would certainly be provable starting from the new postulates. Changing these postulates is possible, that's how we got the parabolic and hyperbolic geometries, see wiki!