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There is a mechanical device inside a “Like” Tombstone.
A visual number increases by one with each press on the
outside rocker, representing the descendant’s memoriam.
99999 is the maximum.
After that, it returns to zero, which symbolizes everything
starts over again.
People could record how many times it has been resumed.
Guangdong University of Technology
Weijie Lin/Jun Li/Ruoxi Zeng/Xin Zhang