You hold it at an angle, the three spikes are used to make the fodder smaller.

Will there be a combine harvester soon? They're much better than any scythe.

Now that is silly. Whatever else would you use a scythe for?

Cutting up pojo.

Scythes aren't generally sharp enough to go through bone, especially because of the long handle. You'd think the huge handle and offsetting the fulcrum etc would make it easy to cut tiny little me, but it actually makes it more strenuous to hold and swing.