Picture two things with a line running between them. Nothing has to move along the line for the picture to work; what matters is that the line is there, so the two are not separate. Connectedness is the name for that state of the line being there. Sometimes the two ends are roads or rivers, sometimes they are a phone and another phone, and sometimes they are you and the people you live among.

可以想成兩樣東西之間有一條線。線上不一定要有東西在跑。重點只是那條線在,所以兩邊不是各自分開的。connectedness 就是在講「那條線在」的這個狀態。兩端有時候是路跟路,有時候是手機跟手機,有時候是你跟你身邊的人。

From the word’s history

connectedness is connected plus the ending -ness, which turns a describing word into the name of a state. So the word literally names the state of being connected, and every use below is a different pair of things that the line runs between.

connectedness 是 connected 加上字尾 -ness。-ness 把形容詞變成一個狀態的名稱。所以它字面上就是「連著的那個狀態」。下面每一個意思,差別只在那條線的兩端是誰。

Wiktionary entry for connectedness (kaikki:3f6f69a190036ae4:1427144734): From connected + -ness.

登入就可以看每一支怎麼連回核心畫面。