Boris Johnson interview on the Brexit negotiations

The video discusses the current pandemic situation, emphasizing the ease of asymptomatic transmission, with one in three people spreading the disease unknowingly. It highlights the importance of public awareness about this issue. The discussion then shifts to Brexit, focusing on the optimism needed for negotiations and the inevitable changes coming on January 1st. The UK Government's willingness to engage in discussions is noted, but there are limits to what can be achieved.

What does the speaker suggest people need to prepare for regarding changes on January 1st?

What limits does the speaker mention regarding the UK's engagement in negotiations?