English. Timezones. Also, lack of enough talent in other countries with similar timezones (Canada/Mexico) since talented folks there can easily move to the US

English. Timezones. Also, lack of enough talent in other countries with similar timezones (Canada/Mexico) since talented folks there can easily move to the US on TN visa. A lot of high-growth companies starting in the US[1], thus providing a BATNA to what your current job is offering. Lack of regulatory hurdles to hire more in the US vs setting up shop in a different country and bring in more regulatory compliance requirements. [1] This itself is due to other factors like: deep capital pools available for seemingly ridiculous ideas, lots of existing talent available to scale your company once there is a product market fit (all the current execs/senior people in tech), relatively less regulations etc.