He said stacking the eggs took a high level of concentration, as well as patience and practice.
You can see the video of Muqbel doing this remarkable feat at this link.
Now that feat took years of practice and patience to achieve.
However, many of the Guinness World Records were achieved in a short period of time by doing something quite normal.
Here are two examples:
On October 10, 2019 (World Mental Health Day) a total of 2,499 people donned hi-viz vests for an event organised by Mental Health Australia.
And set a Guinness World Record for the most people wearing high-viz vests.