This has led to the suggestion that rongorongo must be a recent creation, perhaps inspired by petroglyph designs or retaining individual petroglyphs as logograms (Macri 1995), but not old enough to have been incorporated into the petroglyphic tradition.
Dette har medført nogle forskere har forslået at rongorongo er en nyere opfindelse, muligvis inspireret af petroglyfferne eller de baverede individuelle petroglyffer som logogrammer (Macri 1995), men ikke gamle nok til at have været en del af petroglyf-traditionen.