Or..."I'm going to lunch soon." Probably within the next few minutes.
Unlikely that I mean more than half an hour from now.
"I plan to retire soon."
Likely means within the next few years.
"The Sun will burn out soon."
Could mean thousands or even millions of years.
It's entirely dependent on context.
'Soon', like most other quantitative adjectives and adverbs in English (and most languages for that matter) is inherently relative, and requires some knowledge of the frame of reference to understand what is meant.
The only conclusion you can draw from the use of 'soon' is that the speaker thinks that whatever event is being discussed will occur in the near future in some frame of reference that's reasonable for the conversation.
"Soon" is a very useful word for conveying ambiguity.
"Soon" gives a sense of urgency or imminence without committing the speaker to any particular deadline.
To clarify, people don't usually put a lot of thought into this.
"Soon" just rolls out of our mouths because we have an intuitive sense that it's the right word for the situation. Using other words or phrases isn't necessarily going to cause hard feelings.
And in some cases, "soon" can be understood as dismissive because it doesn't commit to a particular time.
I don't believe RG was being dismissive and was communicating honestly, based on the information that he had at his disposal at the time.
Given the scrutiny and parsing of his every word that's gone on here I wouldn't blame him for just using formal written NR's from here on in...no video.