It can definitely causes issues. The risk factors are: - High-current power cables - Analog signal wires - Low-voltage signal wires In practice it is mostly a

It can definitely causes issues. The risk factors are: - High-current power cables - Analog signal wires - Low-voltage signal wires In practice it is mostly a solved issue. Applications like Ethernet, HDMI, and professional audio have been using balanced signal pairs for decades and they cancel out most interference. We figured out how to do that in the 1880s.