Thanks OP for starting this thread. Looks quite interesting.
Okay so, @dadimoandmincart I read your first chapter and I must say your story has quite a unique plot. I did see some spelling and grammar mistakes (you go from past to present tense a few times) and there was one or two redundancies.
Also I would recommend saying Mandarin Chinese (Mandarin by itself is also fine) instead of Chinese since Chinese is more for dialects and people. Mandarin is the proper name for the language widely spoken in China.
There was also a mistake with the time. The MC was in China but you said he had gone 3 hours back in time - China is ahead of the USA in terms of time zones.
Lastly, I would recommend adding a description to the setting and rework a little on your description of the man. You had one line that I think people may take in the wrong way:
He had an untamed beard, and this was when David realized that the man was Asian.
Anyway, I'm going to stop here because this feedback is getting longer than what was asked. But good job on your first chapter.