Dear Science world … you missed a bit ... it's 'Sand to Pebble' not 'Pebble to Sand' A pebbled shoreline is a tidemark not part of a billion year erosion process. Pebble to sand tells a theory and sand to pebble tells the reverse.
Read the Reverse Theory and discover how your woeful attempt to date the first page of geology, sand, affected our understanding of Time. Correct this woeful attempt and unsolved mysteries are solved - How and why pyramids were built, why evolution is more fantasy than theory, who didn't make the cut, and most importantly learn how to properly assemble the mathematical assumptions that dated radioactive isotopes.
Beach pebbles cannot magically fall from a cliff smooth and rounded, roll towards the sea turning grit shape, then end their journey turning into a different material altogether, calcium carbonate, sand.
Shingle, mid-beach pebbles are clearly seen small pebbles moulded together, and grit, again, sand grains stuck together, the scuffed edges of these pebbles clearly show multi coloured layers, and the microscopic inner tree-like rings conclude a pebbled shoreline is many tidemarks built over each other, laid over a once sandy shore, 100% tidal input 50% eroded output.
Sand has been washed onto the shore not away from the shore, sand is the missing landscape from places like the Grand Canyon and Monument Valley … obviously gone somewhere! Before this forming limestone set like concrete planetary movement of perfect timing washed this landscapes around the world to form our deserts, sandy shores, and civilisation.
Its 'sand to pebble' not pebble to sand, a big difference when calculating life beyond the grave.