Also, all knots are trivial in 4D: https://math.stackexchange.com/questions/1426501/why-are-all-knots-trivial-in-4d https://math.stackexchange.com/questions/142

Also, all knots are trivial in 4D: https://math.stackexchange.com/questions/1426501/why-are-all-knots-trivial-in-4d https://math.stackexchange.com/questions/1426501/why-are-all...