proof of Self-Ping ip in Linux

proof 1

this clearly say that lo interface is down, and I try to ping my own IP. but failed. after turn on lo interface, the ping get normal

proof 2

clearly that TCPDUMP didnt record anything on enp2s0 interface

meanwhile

proof, that packet for x ip, where the x is our own machine IP, is not routed through NIC, it just pass over lo interface even there has no correlation about 127.0.0.1 and 10.0.0.254, the packet still reach lo